Transcript
IS 1367 (Part 2) :2002 1s04759-1:2000
.-
m2
( ?%!7?7 ymf)?m)
Indian Standard TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS PART 2 TOLERANCES STUDS
FOR FASTENERS — BOLTS, SCREWS, AND NUTS — PRODUCT GRADES A, B AND C
(Third Revision )
ICS
21.060.10
@ BIS 2002
BUREAU MANAK
December
OF BHAVAN,
INDIAN
9 BAHADUR NEW DELHI
STANDARDS SHAH 110002
ZAFAR
2002
MARG
Price Group 14
‘\.
J
Bolts, Nuts and Fasteners
Accessories
Sectional Committee,
BP 33 —
NATIONAL
FOREWORD
This Indian Standard (Part 2) (Third Revision) which is identical with ISO 4759-1:2000 ‘Tolerances for fasteners—Part 1:Bolts, screws, studs and nuts — Product grades A, B and C’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recomrhendation of the Bolts, Nuts and Fasteners Accessories Sectional Committee and approval of the Basic and Production Engineering Division Council. This standard was originally published in 1961 and subsequently revised in 1967 and 1979. The last revision was based on ISO 4759/1-1978. This revision of the standard has been taken up to align it with ISO 4759-1:2000 by adoption under dual numbering system. The text of ISO Standard has been approved as suitable for publication as Indian Standard without deviations. Certain terminology and conventions are, however, not identical to those used in Indian Standards. Attention is drawn especially to the following: a)
Wherever the words ‘International be read as ‘Indian Standard’.
Standard’ appear referring to this standard,
they should
b)
Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.
In this adopted standard, reference appears to certain International Standards for which Indian Standards also exist. The corresponding Indian Standards which are to be substituted in their place are listed below along with their degree of equivalence for the editions indicated:
International
Standard
Corresponding
Indian
Standard
Degree of Equivalence
IS 8536:1987 Fasteners—Bolts, nuts—Symbols and designation revision)
ISO 286-1:1988
IS 919(Part 1):1993 ISO systems of limits and fits: Part 1 Basis of tolerances, deviations and fits (second revision)
do
ISO 286-2:1988
IS 919(Part 2):1993 ISO systems of limits and fits: Part 2 Tables of standard tolerance grades and limit deviations for holes and shafts (second revision)
do
ISO 885:2000
IS 4172:1987 Dimensions for radii under the head of bolts and screws (first revision)
Identically
ISO 965-3:1998
IS 14962(Part 3):2001 ISO General purpose metric screw threads —Tolerances : Part 3 Deviations for constructional screw threads
do
IS 8000( Partl ):1985 Geometrical tolerancing on technical drawings: Part 1 Tolerances for form orientation, location and run-out and appropriate geometrical definitions (first revision)
Identicalz)
1s0 1101:2000
screws, studs and of dimensions (first
Identical
ISO 225:1983
.
.
“1
(Continued
1) ~dentic~l ~i~ ISO 885:1978. ‘4 ldenti~~l ~~ ISO 1101 :1983
on third coved
IS
1367
(Part 2) :2002 :2000
1s0 4759-1
Contents
Page
1
Scope ................................................................................................................................................... ........... 1
2
Normative references ....................................................................................................................................2
3
Tolerances for metric bolts, screws and studs ..........................................................................................3
4
Tolerances for metric nuts ..........................................................................................................................25
5
Tolerances for tapping screws ...................................................................................................................36
Annex A (informative) Tolerances ........................................................................................................................... 44 Annex B (informative) Examples of dimensioned
and tolerance
fasteners ......................................................46
Annex C (informative) Examples of gauges and other measuring devices
........................................................49
IS
1367
(Part 2) :2002
1s0 4759-1
:2000
Indian Standard TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS PART
2
TOLERANCES
STUDS
AND
NUTS
FOR FASTENERS — BOLTS, SCREWS, GRADES A, B AND C — PRODUCT
( Third Revision)
1
Scope
This part of ISO 4759 specifies a selection of tolerances for bolts, screws, studs and nuts with ISO metric threads and with product grades A, B and C and for tapping screws with product grade A. NOTE
The product grades refer to the size of the tolerances where grade A is the most precise and grade C is the least
precise.
The tolerances, except tolerances for threads, are selected from the system of limits and fits specified in ISO 286-1 and ISO 286-2. The tolerances for metric threads are taken from the series of tolerance classes specified in ISO 965-3. The tolerances for tapping screw threads are covered in ISO 1478. The tolerances ISO 2692.
of form and position
The tolerances specified also ISO 4042.
are specified
and indicated
in this part of ISO 4759 apply to fasteners
in accordance
with ISO 1101,
prior to coating unless otherwise
ISO 8015 and
specified.
Deviations from the tolerances specified in this part of ISO 4759 are only permitted in product standards there are valid technical reasons. In cases where there is a difference between the tolerance requirements part of ISO 4759 and the product standard, the product standard takes precedence. It is recommended Dimensions
that these tolerances
and tolerances
also be used for non-standard
fasteners.
given in this part of ISO 4759 are in millimetres.
See
where in this
-.
IS
1367 (Part 2) :2002 1s0 4759-1 :2000
2
Normative
references
The following normative documents contain provisions which, through this part of ISO 4759. For dated references, subsequent amendments do not apply. However, parties to agreements based on this part of possibility of applying the most recent editions of the normative references, the latest edition of the normative document referred to registers of currently valid International Standards. ISO 225:1983,
Fasteners
reference in this text, constitute provisions of to, or revisions of, any of these publications ISO 4759 are encouraged to investigate the documents indicated below. For undated applies. Members of ISO and IEC maintain
— Bolts, screws, studs and nuts — Symbols and designation of dimensions.
/S0 system of limits and fits — Part 1: Bases of tolerances, deviations and fits.
ISO 286-1:1988,
ISO 286-2:1988, /S0 system of limits and fits — Part 2: Tables of standard holes and shafts. ISO 885:2000,
tolerance grades and limit deviations
for
General purpose bolts and screws — Metric series — Radii under the head.
ISO 965-3:1998, screw threads.
ISO general purpose
ISO 1101:2000, Geometrical Product orientation, location and run-out.
metric screw threads — Tolerances
Specifications
(GPS)
— Part 3: Deviations
— Geometrical
ISO 1478:1999,
Tapping screws thread.
ISO 1479:1983,
Hexagon head tapping screws.
ISO 2692:1988,
Technical dra wings — Geometrical
ISO 4032:1999,
Hexagon nuts, style 1 — Product grades A and B.
ISO 4042:1999,
Fasteners — Electroplated
ISO 4757:1983,
Cross recesses for screws.
ISO 7053:1992,
Hexagon
ISO 7721:1983,
Countersunk
ISO 8015:1985,
Technical drawings — Fundamental
tolerancing
— Maximum
tolerancing
for constructional
— Tolerances
of form,
material principle.
coatings.
washer head tapping screws. head screws — Head configuration tolerancing
ISO 10509:1992,
Hexagon flange head tapping screws.
ISO 10642:1997,
Hexagon socket countersunk
ISO 10664:1999,
Hexalobular
and gauging. principle.
head screws.
internal driving feature for bolts and screws.
\
2
IS
1367
(Part 2) :2002
1s0 4759-1 3
Tolerances
3.1
for metric bolts, screws and studs
Dimensional tolerances
Symbols and designations
of dimensions
are specified
in ISO 225. Tolerance
for product grades Notes
Feature A
B
c
;hank and bearing surface
close
close
wide
)ther features
close
wide
wide
6g
6g
8g
.1.1
:2000
Tolerance
level
1.1.2 External thread
(but 6g for property class 8.8 and hi9W
For certain products and coatings, other tolerance classes for threads may be specified in th( relevant product and coating standards.
1,1.3 Driving features Tolerance
s
1.1.3.1 1.1.3.1.1
Tolerance
s
External Width across flats
—— ———
<30
h13
< 18
h14
>30
h14
>18 <60
h15
>60<
h16
I
>180
180
h17
s
Q
Figure 1
-4-
S B Figure 2
3
.— IS 1367 (Part 2) :2002 1s0 4759-1 :2000
Tolerance
for product grades Notes
Feature A 3.1.3.1.2
c
B
Width across corners e~in = 1,13 S~i” emin= 1,12 ~minfor bolts and screws with flange —— -t-
w
and other cold forged heads without trimming operation
a Figure 3
t?~in= 1,3 $~i” “+t Q Figure 4 3.1.3.1.3
R=
Height of head
@
F
‘s’4
‘s’5
“
‘“’F
Figure 5
\,
\
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
5
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
6
——
IS
1367
1s0
Tolerance
Feature Depth of hexagon
w
sockets
w
t
t
4759-1
:2000
for product grades B
c
—
—
A 3.1.3.2.3 and slots
(Part 2) :2002
The depth of hexagon sockets and slots is specified in product standards only as a minimum. It is restricted by the minimum wall thickness W.
Notes For the time bein! generally applicable tolerances cannoi be specified.
:+, ~4j)
—
–
—
–1
%%
w t
;$ 13ii
Figure 11 3.1.3.2.4
Cross recesses
See ISO 4757 for all dimensions except penetration depths. For penetration depths see appropriate product standard.
3.1.3.2.5
Hexalobular
See ISO 10664 for all dimensions except penetration depths. For penetration depths see appropriate product standard.
3.1.4 3.1.4.1
recesses
Other features Head diameter
‘II@
‘!
“3a
-
-
‘;’;’;::ds
Figure 12
x
Combined control of diameter and height for counters unk head screws in accordance with ISO 7721 or ISO 10642.
;– \
D
:3, m“ ‘&
RI
3’
– h14
—
.
Figure 13
7
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Tolerance Feature
for product grades
A
B
c
-
-
Notes
.1.4.2 Head height ?xcept for hexagon heads)
y+
p
GM5:h,3
F&
‘M5:h14 Figure
14 For countersunk head screws k is definied in product standards only as a maximum.
Combined control of diameter and height for countersunk head screws in accordance with ISO 7721 or ISO 10642.
d~ ~i” = S~in – IT16 for width across flats <21 mm
For product grade C a washer face is not mandatory.
:– \ k P Figure
15
1.1.4.3 Bearing face diameter and leight of washer-faced portion
x
d~ ~in = 0,95 Sminfor width across flats >21 dw max = sactual Thread diameter
c
*’ a
a
x Reference datum for dw Figure 16
8
max.
0,10
0,25
0,15
0,40
>4t06
0,15
0,50
>6to14
0,15
0,60
>14t036
0,20
0,80
0,30
1,0
to 2,5
>2,5 to 4
~’
c min.
>1,6
@
0,1 n
mm
>36
IS
1367
1s0
Tolerance
-.
for product grades
t-eawre A
c
B
(Part 2) :2002
4759-1
:2000
.. . Notes
x — —— @ 0,1 El dw is defined in product standards
only as a
minimum.
a
m3
e
x Reference datum for dw
Figure 17
b’ m
=/, —1+—— -4/ –2
dw
Thread diameter
x > m> y7
2,5
-
a
<
For product grade A only
min. dkmin–0,14
2,5
5
dk min – 0,25
5
10
dk ~in – 0,4
10
16
dk ~in – 0,5
16
24
dk ~in – 0,8
24
36
dk ~in – 1
36
—
dk ~in – 1,2
0,1
El
x Reference datum for dW
Figure 18
da for undercut
-cm
da for products without undercut is specified
products, see the appropriate product standard.
in ISO 885.
D Figure
19
9
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Tolerance
fo
woduct grades
Feature 3.1.4.4
A
B
js15
js17
c
Notes
Length
[< 150js17 l>150ilT17
[
=3=1 Figure 20
‘(
10
\
‘,.
-,..
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
Tolerance
for product grades
Feature
Notes A
1.1.4.5
c
B
Thread length
P is the pitch of thread.
Bolt
1~is the minimum length of the unthreaded (plain) shank, ~
.2P
~ +2P
o
~ .2P
0
0
Tie rod
R
‘;’P
‘;’
b:
Stud
M
::, Figure
3.1.4,6
:7
/g
is the maximum
length of the unthreadecf shank (thread run-out included) and is therefore the minimum clamping length.
;Z: are not specified in the product standard.
::,
‘m;;Tt&ta’
*IT15
The tolerance is not applicable in the areas of the underhead fillet and thread run-out.
21
Shank diameter
r“ — - — .— h13
h14
L ——
–&.
_—
_—
_
;g=;
Reduced shank diameter
= pitch diameter
~ Figure 22
11
IS
1367
1s0 3.2
(Part 2) :2002
4759-1
:2000
tolerances
Geometrical
In accordance with ISO 1101 and ISO 2692 the tolerances specified in Figures 23 to 57 do not necessarily the use of any particular method of production, measurement or gauging.
imply
When the pitch diameter axis is specified as the datum and the coaxiality deviation of the major diameter axis relative to the pitch diameter axis is negligible, e.g. normally with rolled threads, the major diameter axis may be taken as the datum. to ISO 1101 when the datum is the thread axis the letters MD indicate that the datum reference is the
According major The
diameter maximum
axis. material
principle
in accordance
with ISO 2692 is used. Tolerance
Feature 1.2.1
A
t for product grades B
c
Notes
Driving feature
).2.1 .1
Tolerances
1.2.1 .1.1
of form
External 6xB \ ~\/~
-
~
//i/ a Ho
q 3
x
OM
simultaneously.
Figure 23 4 xpFJ
-4--
43
1
2
x
+
“
o@a
simultaneously.
Figure 24 I
12
.1S 1367
1s0 Tolerance
t for product grades
Feature A ).2.1 .1.2
Tolerance , based on dimensions
X
Notes
Cl
120”
3 x simultaneously.
Figure 25 ).2.1.2
:2000
Internal
6 ~
c
B
(Part 2) :2002
4759-1
Tolerances
of position
rktldA@l
n
1
A
—— F d
MDb
0,5d max.
2 lT13
k+
2 IT14
2 IT15
s
c1
6 X 120”
0,5d max.
I
The datum A shall be as close to the head as possible but within 0,5d distance of the head and shall be either wholly plain or wholly threaded but shall not include the thread run-out or underhead fillet. MD means that tolerance applies in relation to the axis of the cylinder derived from the major thread diameter. 3
x
simultaneously,
Figure 26
rEmm 2 IT13
6 ,b, c
X
2 IT14
—
s
b
120°
See Figure 26.
Figure 27
13
.—
.. IS 1367 (Part 2) :2002 1s0 4759-1 :2000
Tolerance
t for product grades
A
B
c
‘olerance t based on imensions
2 {Tl 3
—
—
d
2 IT13
—
—
d
2IT13
—
—
d
Feature
Notes
c
I
c1
6 X 120°
b,
C
See Figure 26 Figure 28
— w I
A MDb c1
I
A
--l
W
-o-——
–-l
t-
da
6
,b,
c
cl
120”
X
See Figure 26. Figure 29
\/ ‘\
—
—
/\
@ 6 Xm
),
b, C
See Figure 26. FVaure 30 ‘1
14
IS
1367
(Part 2) :2002
1s0 4759-1 Tolerance
t for product grades
Feature
c
Tolerance based on dimension
A
B
2 IT12
—
2 IT12
2 IT13
2 IT14
d
.f+12P
2 IT13
2 IT14
d
14Dw
2 IT14
d
I
~ A
:2000
Notes
MDb
d
L--‘, c See Figure 26.
Figure 31
t-
-i
, b See Figure 26
Figure 32
I
P A
MDb
2 IT12
l-=-
, b See Figure 26.
Figure 33
Y A
/:” —
m–——
\
c
MDb
2 IT12
2 IT13
da
, b See Figure 26.
Figure 34
15
IS
1367
1s0
(Part 2) :2002
4759-1
~
:2000
Tolerance
t for product grades
A
B
c
Tolerance t based on ~imensions
2 IT12
—
—
d
2 IT13
—
—
d
Feature
Notes
See Figure 26.
Figure 35
! b See Figure 26. For referee purposes coaxiality of cross recess shall be assessed by means of a penetration gauge point in accordance with ISO 4757.
Figure 36
u A
MDb
2 IT13
I, b See Figure 26. See Figure 36. Figure
16
37
—
—
d
IS 1s0
Tolerance
t for product grades
(Part 2) :2002
4759-1
A
B
c
Tolerance based on dimension:
2 IT13
2 IT14
2 IT15
dk
2 IT13
2 IT14
Feature
3.2.2
1367
:2000
Notes
Other features
3.2.2.1 Tolerances md run-out
of position
~, b See Figure 26. Figure
I
38
9 A
MDb
m–——
.
dc
2 IT15
d
da E??
1
~, b See Figure 26.
Figure 39
? EDa31 A
PDC
2 IT13
2 IT14
IJ
u d
m-
PD means that the tolerance applies in relation to the axis derived from the pitch diameter.
Figure 40
“1
17
\
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Tolerance
t for product grades
Feature A
B
c
Tolerance t based on dimensions
Notes
~ Fo~ set screws.
m
For all other products,
.A.
———— b
–
lT13d
—
—
d
IT13
—
—
d
IT13
—
—
d
—
d
21T13e =“
See Figure 40,
Figure 41
m
e
A
PO(
~1
M d
See Figure 40.
Figure 42
w ~ A
PDC
d
% See Figure 40.
Figure 43
‘,%
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
See Figure 40. The gauge datum feature A shall be as close to the respective part of the shank as possible but shall avoid the thread run-out.
Figure 45
iT13
IT14
—
d
See Figure 40. The gauge datum features A and B shall be as close to the respective part of the shank as possible but shall avoid the thread run-out.
Figure 46
I “1
19
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Tolerance
tfor product grades
Feature A
c
B
Tolerance t based on dimensions
1.2.2.2 Tolerances )f straightness —
MDb .—. —
F
——
b
:s o
@t@d
<8
t = 0,0021 + 0,05
>8
t = 0,00251 + 0,05
——
0-
Q 0
++
~ln ON 00 0-
0-
:CJ II N
.—.
—
* ..
II
~;
VI ~ -Q-Q
1 T=!!!!!
See Figure 26. Figure
47
=
“
.—. .—
—
<8
m ——–-—— —.—
>8
-G g o=- o ● + t = 0,0021+
0,05
t= 0,00251 + 0,05
.—.
‘R 3
0’34 00
0- 0~g ,, N II w: w : x=
I ,& See Figure 26. Figure
48
1=
:8
f = 0,002/ + 0,05
MDb >8
.—. —m —.—.
— —
—
.—.
———— .—.
—
— b
.
t= 0,00251+
0,05 —
–-
.—.
i I!&s!3 )
See Figure 26. Figure
49
‘“,
Notes
IS
Iso
1367
(Part 2) :2002
4759-1
:2000
21
.\\
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Tolerance
t for product grades
Tolerance
t
Feature A
B
+Z/qtli]
u A. A
MDb
EEpp
b’
r
-c——
—
da
b See Figure 26. Up to 0,8 dk diameter
only.
I I
Figure 53
131
0,08
3,5 0,3
4 5
0,15
6 7
0,17
0,34
8
0,21
0,42
10
0,25
0,50
12
0,29
0,58
14
0,34
0,68
16
0,38
0,76
18
0,42
0,84
20
. See Figures 51 and 52
c
l==
In case of flange bolts, tolerances apply to type F and type U.
0,46 0,50
++ b See Figure 26. Line of highest points on any radial line.
Figure 54
E
1,00
I
24
I
1,26
I
30
I
33
I
0,57 0,63
E
0,69 0,76 0,82
I
0,44
I I I
0,47 0,50 0,55
a 1,38
I
1,52
36
1,64
39
0,88
42
0,94
45
1
48
1,1
52
22
.. i.
,
IS 1s0
Tolerance
t for product grades
Feature A
B
c
1367
(Part 2) :2002
4759-1
rolerance t based on Dimensions
:2000
Notes
c
Fu
flt A
A
MDb
Basis For r see Figures 51 to 54
for r see Figures 51 to 54
b See Figure 26. See Figure 51.
Figure 55 For dog points only, not for pilo points
, b See Figure 26. Upto00,8dP
only Figure 56
23
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Tolerance
t for product grades
Feature A
B
c
Tolerance t based on flimensions
3.2.2.4 Permissible deviation ‘rem the form of bearing face
x
&
-b ———
0,005 d
x da max and & min. to product standard.
radial lines between I
According
Figure 57
d
Notes
IS
1367
(Part 2) :2002
1s0 4759-1 4
Tolerances
4.1 NOTE
Dimensional
:2000
for metric nuts tolerances
Symbols and designations of dimensions are specified in ISO 225.
25
IS
1367
(Part 2) :2002
1s0 4759-1
:2000
Tolerance
for product grades
Feature A
1.1.3 I.1 .3.1
c
B
Notes
Driving features Width across flats
J_ o
s
Tolerante
< 30
h13
>30
h14
‘/ s
Q 59
Tolerance
< 18
h14
>18 <60 >60
Figure
s
h15
<180
h16
>180
h17
+o
See figure 59
See figure 59
s Q. Figure 60 1.1.3.2
Width
across
corners
e~ifl = 1,13 ~~ifl
+.
@ Figure 61
+ o t
e~ln = 1,3 .S~in
D Figure 62
‘1
IS 1s0
1367
(Part 2) :2002
4759-1
:2000
~ Tolerance
for product grades
Feature A
1.1.4 Other L1 .4.1
c
B
Notes
features
Height
of nuts
REB
d<12mm:h14 12mmcd<18mm:h15
h17
For slotted nuts and castle nuts see 4.1.5.1
d>18mm:h16
m
8 Figure 63 ‘revailing torque type nuts (with non_netallic insert)
h
I!!I!l Prevailing
torque type all metal hexagon
nuts
Tolerance
of h, see product
standards T
h E Figure 64
27
.. i.
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
~lwamin = (), fj
,nmi”
28
\\
IS
1367
1s0
Tolerance
Feature A 4.1.4.3 Bearing face diameter and height of washer-faced portion
(Part 2) :2002
4759-1
:2000
for product grades
c
B
Notes
~Wmin= ~min- IT16for width across flats <21 mm 1’w Min = 0,95 ~minfor width across flats >21 mm i w max = ‘actual
ED m3
x
B —
c
Thread
diameter a 1,6 to 2,5 >2,5 to 4 >4t06 >6to14 >14t036 >36
min.
max.
0,10 0,15 0,15 0,15 0,2 0,3
0,25 0,40 0,50 0,60 0,8 1,0
Requirements apply to both sides of symmetrical parts.
Reference datum for dw
Figure 67 {W min for hexagon nuts with flange in accordance vith product standards
f
;-’ x
Figure 68
i
29
IS
1367 (Part 2) :2002 1s0 4759-1 :2000
Tolerance Feature
for product grades B
.A
c
Requirements apply to both sides of symmetrical parts.
d<5m_m:damM=l,15d lx —.
5mm8 mm: damaX = l,08d
m
for all sizes: da ~in = d
lx .
B“
m
(x — mm
@ = 90° to 120°
Figure 69 L1.5
Special
L1 .5.1
products
Castle
nuts, slotted nuts w
A
mW
m
w
d.
h14
h15
h16
m
h14
h15
h17
n
H14
H14
H15
w
h14
h15
h17
m ~
see row-values for hexagon nuts style 1 (see ISO 4032)
c——
mW m 9 Figure 70
Notes
IS
1367
1s0 4.2
Geometrical
(Part 2) :2002
4759-1
:2000
tolerances
In accordance with ISO 1101 and ISO 2692 the tolerances specified in Figures 71 to 83 do not necessarily imply the use of any particular method of production, measurement or gauging. Where the nut thread is used as the datum the pitch diameter The maximum
material principle
in accordance
shall be the reference
with ISO 2692 is used. Tolerance
t for product grades
Feature A .2.1
diameter.
B
c
Notes
Driving features
,.2.1.1
Tolerances
of form
+
+
I 00’1
+\
Ooj
I
I
3
x simultaneously. Figure
~
2
71
x simultaneously. Flgtwe
72
31
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
A
B
c
‘olerance t based on imensions
2 IT13
2 IT14
2 IT15
s
2 IT13
2 IT14
—
s
2 IT13
2 IT14
2 IT15
s
Tolerance Feature
2.1.2
Tolerances
tfor product grades
of position
a
6 K 120” 3 x simultaneously.
Figure 73
p!EE31Ei!d
5
6 X 120” 3 x simultaneously.
Figure 74
I
—
k’@
IA
-sJ
-1-
rl
& x 90” 2
x
simultaneously.
Figure 75
32
Notes
IS
1367
1s0 Tolerance
r for product grades
A
B
c
Tolerance t based on dimensions
2 IT14
2 IT15
—
dc
2 IT13
2 IT14
2 IT15
d
2 [T13
2 IT14
—
dk
Feature
4.2.2 4.2.2.1
(Part 2) :2002
4759-1
:2000
Notes
Other features Tolerances
of position
~I$t~A~
A
m
m“ ——— E
Figure 76 3x ~t~A~ A
c
m
@ Figure 77
~f3t~A~
A
F —— b’—= B
Figure 78
‘1
33
IS
1367
(Part 2) :2002 :2000
1s0 4759-1
Tolerance
r for product grades
Feature A
B
c
Tolerance r based on dimension
Notes
d L2.2.2
Tolerance
of total
1,6
run-out
0,04
2 &Aa
A
—
2,5 3
0,08 3,5 m
w
4
——— &
~~
0,15
0,3
5 6
~ Up to 0,8s diameter only. Figure
79
flt
A .
7
W — —
w
a
Up to 0 0,8s only. Figure
80
&t
A
m
—— ———
Up tO 0 o,8dk Only.
Figure 81
34
8
0,21
0,42
10
0,25
0,50
12
0,29
0,58
14
0,34
0,68
16
0,38
0,76
18
0,42
0,84
20
0,46
0,92
22
Aa
0,50
1
24
0,57
1,14
27
0,63
1,26
30
0,69
1,38
33
0,76
1,52
36
0,82
1,64
39
0,44
0,88
42
0,47
0,94
45
0,50
1
48
0,55
1,1
52
b’
w a
0,34
Aa
—
m
0,17
For
symmetrical parts the perpendicularity requirement shall apply for both faces.
IS
1367
1s0 Tolerance
Notes
B
c
~Hz7q A
t.
>
For
r see
values
for Figures
79, 80 and 81.
! M i
Line of highest points on any radial line. Figure
4.2.2.3
82
Permissible
the shape
deviation
of bearing
from
face
x -ci [ g’
o,oo5Li’
vb . ~ ,/-+=+] L--\———— d ,,1 b“‘T ~ x 3 J
b>
Radial lines between da maxand cIWmin. According to product standard. Figure
:2000
r for product grades
Feature A
(Part 2) :2002
4759-1
83
\
IS
1367
1s0 5
(Part 2) :2002
4759-1
:2000
Tolerances
5.1
Dimensional
for tapping screws tolerances
— Product
grade
A
Symbols and designations of dimensions are specified in ISO 225. Feat II re
Notes
Tolerance
h13
e~in = 1,12 .Y~in
36
\
‘.
. ..
IS
1367
(Part 2) :2002
1s0 4759-1
:2000
37
IS
1367
(Part 2) :2002
1s0 4759-1
:2000
h14
38
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
Tolerance
Feature S.1.3.3
Notes
Length
Types C and R 1
t-
‘–”--”-”–-
“---”--”
“--”--” ‘-””
““””-”----
Tolerance
-s--Lu_
Type C
Type F I
3
Type F
Type R
I
<19 >19 <38
Tolerance 0 -0,8 0 -1,3
>38
0 -1,5
Figure 93
IS
1367
(Part 2) :2002
1s0
4759-1
5.2
Geometrical
:2000
tolerances
— Product
grade
A
In accordance with ISO 1101 and ISO 2692 the tolerances of form and position indicated in Figures 94 to 104 do not necessarily imply the use of any particular method of production, measurerr,ent or gauging. Where a tapping screw thread is indicated either determined from the major diameter of the thread. The
maximum
material
principle
in accordance
as the
datum
or as the tolerance
feature
the axis
shall
be
with ISO 2692 is used.
The datum A shall be as close to the head as possible but within 1 P distance of the head. It shall not include the thread run-out
or underhead
fillet.
MD means that tolerance applies in relation to the axis of the cylinder derived from the major thread diameter according t( 1s01101. 3
x simultaneously. Figure 95
40
IS 1s0
Feature
❑
Tolerance
f
1367
(Part 2) :2002
4759-1
roierance t basec on dimension
:2000
Notes
Ml)’
c
2 IT12
d
2 IT12
d
2 IT12
d
l-=-l ~,b See Figure 95. Figure
96
c
1---L.b See Figure 95.
Figure 97 . ..—._.v
——
&-Q 1
n A
u
MDb
da L-1
, b See Figure 95.
Figure 98
I
41
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
I
1
sb See Figure 95. I
For referee purposes assessment of co-axiality of cross recess features shall be by means of a perpetration gauge point in accordance
I
with LSO 4757.
6
d
I
I
fik
‘.
IS
1367
(Part 2) :2002
1s0 4759-1
Feature 5.2.2.2
Total
Tolerance
t
rolerance t basec on dimension
run-out
:2000
Notes Tolerance t :alculated as ‘Ollows:
w
‘=l,2dxt_an2°
d w
l-=-
I, b
See Figure 95, Up to 0,8.r diameter
only.
Figure 102 d
ST2,2 ST2,9 ST3,5 ST4,2 ST4,8 ST5,5 ST6,3 ST8 ST9,5
t 0,08 0,16 0,16 0,16 0,3 0,3 0,3
d
0,34 0,42
I, b See Figure 95. up to 0,8 dk diameter only.
Figure 103 5.2.2.3
Straightness
t = 0,003/+
0,05
.
for / < 20d
See Figure 95.
Figure 104
43
1367
IS
(Part 2) :2002
1s0 4759-1
:2000
Annex A (informative)
Tolerances
Numerical given
values
of IT tolerance
grades
in Tables A.2 and A.3 respectively.
are given in Table
These tolerances
A.1 and the limit deviations
Table A.1 — Numerical values of standard tolerance Nominal dimension < >
IT12
I
IT13
for shafts and for holes are
are taken from ISO 286-1 and ISO 286-2. grades IT for basic sizes up to 500 mm
Standard tolerance grades IT15 IT14
IT16
IT17
0,4 0,48 0,58 0,7 0,84 1 1,2 1,4 1,6
0,6 0,75 0,9 1,1 1,3 1,6 1,9 2,2 2,5
1 1,2 1,5 1,8 2,1 2,5 3 3,5 4
Tolerances 3 6 10 18 30 50 80 120
3 6 10 18 30 50 80 120 180
0,1 0,12 0,15 0,18 0,21 0,25 0,3 0,35 0,4
0,14 0,18 0,22 0,27 0,33 0,39 0,46 0,54 0,63
0,25 0,3 0,36 0,43 0,52 0,62 0,74 0,87 1
180
250
0,46
0,72
1,15
1,85
2,9
4,6
250
315
0,52
0,81
1,3
2,1
3,2
5,2
315
400 500
0,57 0,63
0,89 0,97
1,4
2,3
3,6
5,7
1,55
2,5
4
6,3
400
Table A.2 — Limit deviations I
Nominal
>
dimension
< 3
3
6
6
10
10
18
18
30
30
50
50
80
80
120
120
180
180
250
250
315
315
400
400
500
for shafts
Limit deviations
! h13
h14
h15
h16
h17
0 –0,14 0 –0,18 0 – 0,22 0 -0,27 0 -0,33 0 -0,39 0 -0,46 0 -0,54 0 -0,63 0 -0,72 0 – 0,81 0 -0,89 0
0 – 0,25 0 – 0,3 0 – 0,36 0 -0,43 0 – 0,52 0 – 0,62 0 -0,74 0 – 0,87 0 -1 0 -1,15 0 -1,3 0 -174 0
0 -0,4 0 – 0,48 0 – 0,58 0 -0,7 0 – 0,84 0 -1 0 -1,2 0 -1,4 0 -1,6 0 – 1,85 0 -2,1 0 -2,3
0 -0,6 0 -0,75 0 -0,9 0 -1,1 0 -1,3 0 -1,6 0 -1,9 0 -2,2 0 -2,5 0 -2,9 0 -3,2 0 -3,6
0 -1 0 -1,2 0 -1,5 0 -1,8 0 -2,1 0 -2,5 0 – 3,0 0 -3,5 0 -4 0 -4,6 0 -5,2 0 -5,7 0
–097
0
–1!=+, -CIK
0
,4
–ccl
I
js14
jsl 5
js16
js17
t0,125
* 13,2
~ 0,3
? 0,5
to,15
f 0,24
f (),375
* 0,6
~o,18
* 0,29
* 0,45
* (),75
* 0,215
* (),35
f 0,55
& 0,9
~ o,26
k 0,42
t 0,65
f 1,05
i 0,31
f 0,5
k 0,8
? 1,25
* (3;37
~ o,6
t 0,95
fl,5
* 0,435
f 0,7
~1,1
* 1,75
* r3,5
f o,8
k 1,25
fz
t 0,575
~ o,925
t 1,45
* 2,3
~ o,65
i 1,05
tl,6
~ 2,6
i 0,7
+1,15
*1,8
k 2,85
* 0,775
* 1,25
*2
*3,15
44
\
‘\\
IS
1367
(Part 2) :2002
1s0 4759-1 Table A.3 — Limit deviations Nominal dimension > <
3
3
6
10
18
30
6
10
18
30
50
60
80
120
for holes
Limit deviations C13
C14
D9
D1O
Dll
D12
EF8
11
+ 0,2
+ 0,31
+ 0,045
+ 0,06
+ 0,08
+0,12
+ 0,024
+ 0,074
+ 0.06
+0,06
10,02
+ 0,02
+ 0,02
+ 0,02
+ 0,01
+ 0,014
E12
H14
H15
+0,114
+ 0,25
+ 0,4
+ 0,014
0
0
+ 0,25
+ 0,37
+ 0,06
+ 0,078
+0,105
+0,15
+ 0,032
+ 0,095
+0,14
+ 0,3
+ 0,48
+ 0,07
+ 0,07
+ 0,03
+ 0,03
+ 0,03
+ 0,03
+ 0,014
+ 0,02
+ 0,02
0
0
+0,13
+ 0,19
+ 0,04
+0,115
+0,175
+ 0,36
+ 0,58
+ 0,04
+ 0,04
+ 0,018
+ 0,025
+ 0,025
0
0
+ 0,23
+0,142
+0,212
+ 0,43
+ 0,7
+ 0,05
+ 0,032
+ 0,032
0
0
+ 0,52
+ 0,84
+ 0,275 + 0,065
0
0
+ 0,33
+ 0,62
+1
+ 0,08 50
+ 0,4 +0,1 + 0,47 +0,12
0
0
+ 0,74
+ 1,2
o + 0,87 o
io,olz
K9
5
0 -0,025
to,o15
0 -0,03
f0,018
o -0,036
0
0
180
o
0
250
+ 1,15
+ 1,85
250
315
+1,3 o
0
315
400
+1,4
+ 2,3
0
0
400
500
+ 1,55
+ 2,5
180
JS9
+1,4
+1
120
:2000
+1,6
0
0
0 +2,1
0
‘1
45
IS
1367
(Part 2) :2002
1s0 4759-1
:2000
Annex
B
(informative) Examples
of dimensioned
and tolerance
fasteners
Fig, 25
I
Fig. 42
bxm
/
/4
m
t-
-+-Q
-G
1
s +p
F
,&tcFig, 52
1a
Up to 0,8 dk diameter
b
3 x simultaneously.
=ml
@
!iEimEIb
only.
Figure B.1 — Hexagon socket head cap screw with shank and cone point
46
o@jb
Fig. 25
Fig. 28
IS
1367
(Part 2) :2002
1s0 4759-1
F
—@t@
:2000
Fig, 39
Fig, 48
1
I
m
6xM
Fig. 54 I
M
0,75° 20,5” 7 \
Fig, 27
/
—
x a
Line of highest points on any radial line.
b
Radial lines between ‘[a ~ax and ~Iw~in,
c
3 x simultaneously.
I
Figure B.2 — Hexagon
head bolt with flange and pilot point
I
“ 47
IS 1s0
1367
(Part 2) :2002
4759-1
:2000
Fig. 76
—-——
.
l—
——-
a
!J
~+yit
Fig. 82
0,75° to,75° +
&
‘,
b
Fig. 83
~~~:~~
/_
4 ‘1~~
7‘=”
m’
x
a b
Line of highest points on any radial line. Radial lines between da max and (IW mm.
c
3 x simultaneously.
Figure B.3 — Hexagon nut with flange
‘1
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
Annex C (informative)
Examples
of gauges
and other measuring
devices r
C.1 Application This
annex
specified
gives
examples
of gauges
in this part of ISO 4759
and
other
measuring
devices
which
can verify whether
the tolerances
are satisfied.
The thread of gauges and measuring devices shall be within the limits for GO gauges. Guides shall have such an accuracy that errors due to the guides during inspection are negligible compared to the workpiece tolerance t (e.g. less than 10 0/~of r). If the datum is not associated
with the maximum
material requirements,
indicated
by ~,
the following
applies:
when the datum is an external thread, the major diameter axis (MD) or the pitch diameter axis (PD) is the datum as specified in this part of ISO 4759. When the datum is the major diameter, the part may be fixed in a 3 jaw chuck; when the datum is an internal thread, in the examples of this annex the nut is tightened spring washer. Another possibility is to use a tapered threaded mandrel for this purpose; when the datum is a plain shaft or a tapping feature
a conical
screw thread it may be fixed in a 3 jaw chuck regardless
of the
size;
C.2 Gauges and other measuring NOTE
against
All gauges
given
in this
annex
devices are
GO gauges.
Diameter dg, if existant,
should be chosen
by the gauge
manufacturer.
The gauges and measuring devices specified in 3.2, 4.2 and 5.2.
given in this annex are intended
for the verification
of geometrical
tolerances
Each gauge and measuring device is allocated to one or more figures in the main body of this part of ISO 4759 in order to make clear which tolerance is verified by which gauge or measuring device.
6 a
Maximum material size. Figure
C.1 — Gauge for verifying form tolerance
specified
in Figures 23,71
and 94
49
—IS 1s0
1367
(Part 2) :2002
4759-1
:2000
m
W
6 X@ 120° a
Maximum material size. Figure C.2 — Gauge for verifying form tolerance
specified
in figure 25
A
I
a
Maximum
material
size,
Figure C.3 — Gauge for verifying form tolerance
specified
in Figures 24 and 72
L--l d
a
Maximum
b
The GO gauge is a plain hole of maximum
material
size + ~ material size.
Figure C.4 — Gauge for verifying position tolerance
50
specified
in Figures 26,27
and 95
IS 1s0
1367
(Part 2) :2002
4759-1
:2000
d ‘E a b
c
Maximum
material
size – [
The GO gauge is a plain hole of maximum Minimum
material
size.
socket depth.
Figure C.5 — gauge for verifying
position tolerance
specified
in Figures 28,29,30
and 31
La
; .
0
I
t--
—-4
d L !--U
3d
a
L > s (see Figures 32 and 98); 1.> dk (see Figures 33, 34, 96 and 97); L > d (see Figure 35),
b
Maximum
material size – /.
c
The GO gauge is a plain hole of maximum
d
Minimum
material size.
slot depth,
Figure C.6 — Gauge for verifying
position tolerance
specified
in Figures 32,33,34,35,96,97
and 98
*
51
IS
1367
1s0
—
(Part 2) :2002
4759-1
:2000
t-x-b+, I
/
I//”/.’ii
L“’.///’l//’’/’/////A
/
~“;’”;’
,,’
/
,
Key 1
Gauge
pin in accordance
NOTE a
with ISO 4757
This gauge does not check the size of the recess, e.g. an oversized
The GO gauge is a plain hole of maximum
b
~ is a function
c
First contact.
d
Contact
cross recess is not recognized.
material size.
of length of gauge pin and the required penetration
of the recess
shall be achieved.
Figure C.7 — Gauge for verifying position tolerance specified
!––
;
l––
d d
a
b
The GO gauge is a plain hole of maximum Maximum
material
in Figures 36, 37, 99 and 100
J
material size.
size + I.
Figure C.8 — Gauge for verifying position tolerance
specified
in Figures 38,39
and 101
.,,
52
IS 1s0
1367
(Part 2) :2002
4759-1
:2000
——
-Q
@
a
Maximum
material
size - I
Figure C.9 — Gauge for verifying
position tolerance
specified
in Figure 40
specified
in Figure 41
I--& Figure C.1O — Gauge for verifying
position tolerance
21
Key 1
Gauge conical
spring washer
2
Gauge counter
nut
Figure C.11 — Measuring
device for verifying
run-out speqified
in Figures 42 and 43
53
IS
1367
1s0
(Part 2) :2002
4759-1
:2000
1
Key 1
Three jaw chuck
Figure C.12 — Measuring
a
b
1
device for verif ying total run-out specified
depends on the distance between the datum feature and the end of the tolerance
Maximum
material
feature.
size + t,
Figure C.13 — Gauge for verifying position tolerance
54
in Figure 56
specified
in Figures 44,45
and 46
IS 1367 (Part 2) :2002 1s0 4759-1 :2000
t
‘ /“ ,
‘T
E TI
I I,
I
d
I
1
I
L-–-—=–—— Key 1
Three jaw chuck
Figure C.14 — measuring device for verifying perpendicularity (total run-out) specified in Figures 51, 52, 53, 55, 102 and 103
21
Key 1
Three jaw chuck
2
Straight edge anvil
Figure C.15 — Measuring
device for verifying
perpendicularity
(total run-out) specified
in Figure 54
55
IS 1s0
1367
(Part 2) :2002
4759-1
:2000
LI
I
Key 1
Three jaw chuck
Figure C.16 — Measuring
device for verifying permissible deviation specified in Figure 57
from the form of bearing face
-w a
Maximum
material
size + I.
Figure C.17 — Gauge for verifying
a
specified
in Figures 73 and 74
Max. mat. size + r, Figure
56
position tolerance
C.18 — Gauge
for verifying
position
tolerance
specified
in Figure 75
IS 1s0
a
a
(Part 2) :2002
4759-1
:2000
Max. mat. size + ~.
Figure C.19 — Gauge for verifying
b
1367
position tolerance
specified
in Figures 76 and 78
Max. mat. size. Max. mat. size - [,
Figure C.20 — Gauge for verifying
position tolerance
specified
in Figure 77
12
L
1
1
J
I
1
Key 1
Gauge conical spring washer
2
Fastener
Figure C.21 — measuring device for verifying perpendicularity specified in Figures 79, 80 and 81
(total run-out)
57
IS 1s0
1367
(Part 2) :2002
4759-1
:2000
2
1 /
i
-1-.
1
— —
Key 1
Gauge
2
Straight
conical
spring
washer
edge anwl
Figure
C.22
— Measuring
device for verifying
perpendicularity
(total run-out) specified
in Figure 82
1
L
L-
—
Key
1
Gauge
conical spring washer
Figure C.23 — Measuring
device for verifying permissible deviation specified in Figure 83
./’/ /,..,,, ., .,,, ,.,
.
from the form of bearing face
. . ,,
m-”-r
J m
a
,.,, / , ‘//’
y—-.
a
Maximum
material
“./
[
‘-
,/’/ ., /’
~
size + I. “1
Figure C.24 — Gauge for verifying straightness
58
specified
in Figures 47, 48, 49, 50 and 104
(Continued
from second
International
cover) Corresponding
Standard
Indian
Standard
Degree of Equivalence
ISO 1478:1999
IS 5957:2002 Screw threads for thread forming tapping screw — Dimensions (second revision)
ISO 2692:1988
IS 8000(Part 2):1992 Geometrical tolerances: principles (firs! revision)
ISO 4032:
999
IS 1364(Part 3):2002 Hexagon head bolts, screws and nuts of product grades A and B: Part 3 Hexagon nuts size range Ml.6 to M64 (fourth revision)
do
ISO 4042:
999
11 ):2002 Technical supply conditions for threaded steel fasteners: Part 11 Electroplated coatings (third revision)
do
ISO 4757:1983
Technical drawings— Part 2 Maximum material
IS 1367(Part
IS 7478:1985 revision)
Dimensions
for cross
IS 7479:1985 revision)
Recesses
penetration
recesses(first
do
Technically equivalent
gauges (first
and gauging
Identical
ISO 7721:1983
IS 11362:1985 Head configuration countersunk head screws
of
ISO 8015:1985
IS 12160:1987 Technical tolerancing principles
drawings — Fundamental
ISO 10642:1997
IS 6761:1994 Countersunk socket (first revision)
head screws with hexagon
do
Identical
do
Technically equivalent
The concerned Technical Committee has reviewed the provisions of the following ISO Standards referred in this adopted standard and has decided that they are acceptable for use in conjunction with this standard: ISO Standard ISO ISO ISO ISO
1479:1983 7053:1992 10509:1992 10664:1999
Title Hexagon head tapping screws Hexagon washer head tapping screws Hexagon flange head tapping screws Hexalobular internal driving feature for bolts and screws
In reporting the result of a test or analysis made in accordance with this standard, observed or calculated, is to be rounded off, it shall be done in accordance with for rounding off numerical values (revise@’.
if the final value, IS 2:1960 ‘Rules
Bureau
of Indian
BIS is a statutory
harmonious
Standards institution
development
goods and attending
established
to connected
of /ndian Standards
under the Bureau
of the activities matters
of standardization,
marking
Act, 1986 to promote
and quality
certification
of
in the country.
Copyright BIS has the copyright
of all its publications.
form without the prior permission of implementing designations. Review
Amendments
of necessary
relating to copyright
are issued
periodically;
no changes
to standards
a standard
are needed;
details,
such
be addressed
as the need arises
as symbols
and sizes,
to the Director
type
(Publication),
on the basis of comments.
along with amendments
if the review indicates
Users of Indian Standards
should ascertain
is reaffirmed
that changes
in any
or grade
BIS.
This Indian Standard
has been developed
Amendments No.
Standards
when such review
are needed,
that they are in possession
edition by referring to the latest issue of ‘BIS Catalogue’
Amend
may be reproduced
Indian Standards
of
reviewed
the standard,
Enquiries
No part of these publications
in writing of BIS. This does not preclude the free use, in the course
and ‘Standards:
are also
indicates
that
it is taken up for revision.
of the latest amendments
or
Monthly Additions’.
from DOC: No. BP 33 (0261).
Issued Since Publication
Date of Issue
Text Affected
BUREAU OF INDIAN STANDARDS Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telephones: 3230131, 3233375,3239402
Telegrams: Manaksanstha (Common to all offices)
Regional Offices:
Telephone
Central
: Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI 110002
Eastern
: 1/1 4 C.I.T. Scheme Vil M, V.I.P. Road, Kankurgachi KOLKATA 700054
3378499,3378561 ( 3378626,3379120
Northern
: SCO 335-336, Sector 34-A, CHANDIGARH
Southern
: C.I.T. Campus,
603843 { 602025 2541216,2541442 { 2542519,2541315
Western
: Manakalaya, E9 MlDC, Marol, Andheri (East) MUMBAI 400093
Branches
: AHMEDABAD. GHAZIABAD. NALAGARH.
IV Cross Road, CHENNAI
BANGALORE.
3237617,
160022 600113
BHOPAL. BHUBANESHWAR.
3233841
8329295,8327858 { 8327891, 8327892 COIMBATORE.
FARIDABAD.
GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. VISAKHAPATNAM. Printed at Simco
..
I.
Printing
Press,
Delhi