|
IS0
I NT ERN AT1 ON AL ORGAN I Z AT1 O N FOR STAND A RD I Z AT I O N
DATION
IS0 RECOMMEN
R 529
SHORT MACHINE TAPS AND HAND TAPS
1st EDITION
Novern ber 1966
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
in Switzerland
Printed
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
---------------------- Page: 1 ----------------------
BRIEF HISTORY
The IS0 Recommendation R 529, Short Machine Taps and Hand Taps, was drawn up
by Technical Committee ISO/TC 29, Small Tools, the Secretariat of which is held by the Asso-
ciation Française de Normalisation (AFNOR).
Work on this question by the Technical Committee began in 1950 and led, in 1962, to the
adoption of a Draft IS0 Recommendation.
In April 1964, this Draft IS0 Recommendation (No. 666) was circulated to all the IS0
Member Bodies for enquiry. It was approved by the following Member Bodies:
Argentina Denmark Portugal
France Spain
Austria
Germany Switzerland
Belgium
Brazil Hungary Turkey
Canada Italy United Kingdom
Netherlands Yugoslavia
Chile
Colombia New Zealand
Czechoslovakia Poland
Three Member Bodies opposed the approval of the Draft:
Sweden
U.S.A.
U.S.S.R.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Council
which decided, in November 1966, to accept it as an IS0 RECOMMENDATION.
-2-
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C O NTE NTS
Page
. .
1 Scope 5
2 . Interchangeability . 5
3 . Coarse pitch metric threads . 6
3.1 Dimensions in millimetres . 7
3.2 Dimensionsin inches . 9
4 . Fine pitch metric threads . 11
4.1 Dimensions in millimetres . 11
4.2 Dimensions in inches . 14
5 . Unified Coarse (UNC) threads . 17
5.1 Dimensions in millimetres . 17
5.2 Dimensions in inches . 19
6 . Unified Fine (UNF) threads . 20
6.1 Dimensions in millimetres . 20
6.2 Dimensions in inches . 21
British Standard Whitworth (BSW) and British Standard Fine (BSF) threads .
7 . 22
7.1 Dimensions in millimetres . 22
7.2 Dimensions in inches . 23
. British Association (BA) threads . 24
8
8.1 Dimensions in millimetres . 24
8.2 Dimensions in inches . 25
Annex A
A.l Theoretical formulae . 26
A.2 Length of thread: permissible minimum values Z,, . 26
A.3 Length of thread and overall length : standard values . 26
A.4 Shank diameter and driving square . 26
A.5 Form of taps . 26
A.6 Length of thread: permissible minimum values . 27-28
A.6.1 Dimensions in millimetres . 27-28
A.6.2 Dimensions in inches . 29-30
A.7 Shank diameter. length of thread and overall length:
............................................................ 31-32
standard values
A.7.1 Dimensions in millimetres . 3 1-32
A.7.2 Dimensionsin inches . 33-34
-3-
---------------------- Page: 3 ----------------------
IÇOIR 529 - 1966 (E)
IS0 Recommendation R 529
N ove m be r 1 966
SHORT MACHINE TAPS AND HAND TAPS
I 1. SCOPE
This IS0 Recommendation, dealing with short machine taps and hand taps, gives the general
I
dimensions of these tools as a function of the thread diameter and pitch:
- length of thread
- overall length
- shank diameter and dimensions of driving square
- dimensions of the connecting portion between the shank and
threaded part.
It comprises six groups of tables (Tables 3.1 to 8.1 for dimensions in millimetres and Tables 3.2
to 8.2 for dimensions in inches) corresponding respectively to the following threads :
Metric threads :
- coarse pitch
- finepitch
Inch threads :
- Unified Coarse threads (UNC)
- Unified Fine threads (UNF)
- British Standard Whitworth (BSW) and
British Standard Fine threads (BSF)
- British Association threads (BA).
Taps are standardized only for threads, in millimetres or in inches, having a pitch greater than that
of the Unified Extra Fine thread (UNEF).
However, in the Annex A, Tables A.7.1 and A.7.2 give the values of overall lengths and shank dia-
meters which may be used for the manufacture of taps outside the standard.
of Io
Also in the Annex A are Tables A.6.1 and A.6.2 which give the minimum permissible values
length of threads, as determined by tests carried out in different countries.
of thread I, always at least equal to Io, have been chosen in such a way
The standardized lengths
as to permit the use of the same blank for several consecutive pitches.
Tables in sections 3 to 8 are followed by a note giving details of tolerances and marking applying
to all the standard taps covered by these tables.
2. INTERCHANGFABILITY
Tables 3.1 to 8.l,aswellasTablesA.6.1 andA.7.1 in theAnnexA,relate todimensionsinmillimetres;
Tables 3.2 to 8.2, as well as Tables A.6.2 and A.7.2 in the Annex A, relate to dimensions in inches.
The values given in each of these two groups of tables have been determined in such a way as to
ensure interchangeability between taps made to one of the systems of measurement and taps
made to the other system, for whichever system of thread, metric or inch, the tap is required.
I
C
---------------------- Page: 4 ----------------------
ISOIR 529 - 1966 (E)
3. COARSE PïïCH METRIC THREADS
d = I to 2.5 mm
d=3toIOrnm
d> 10mm
I
---------------------- Page: 5 ----------------------
ISOIR 529 - lW (E)
3.2 Dimensions in inches
-
d
di da
Desk-
Pitch L
I Il
a
nation
min.
nomiiipl h9
hl 1
M 1.0 0.0394
M 1.1 0.0433 117/3a
0.00984 7/32
M 1.2 0.0472
0.079
M 1.4 0.055 1 0.01181 0.0984 9/32 5/32
M 1.6 0.0630
0.01378
1 6/83
M 1.8 0.0709
M 2.0
0.0787 0.01575
M 2.2
0.0866
--
0.1102 0,088
0.01772 l/4
M 2.5 0.0984
o. 1240 0.083 0.098
M 3.0 0.1181 0.01969
9/32
M 3.5 O. 1398 0.098 0.110
0.1378 0.02362
M 4.0 O. 1575 O. 1575 0.110 0.124
0.02756
6/16
2 1/18
l/4
0.124 0.140
M 4.5 O. 1772 0.1772
0.02953
o. 140 0.157
M 5.0 0.1969 9/32
0.1969 0.03150
5/8
~
0.177 0.197
M 6.0 0.2362 0.2480
2 6/83 6/1 8
0.03937
v4
M 7.0 0.209 0.220
0.2756 0.2795
M 8.0 0.236 0.248
0.3 150 0.3150 "Is2
2 7/83
0.04921 718
M 9.0 0.280 0.280
0.3543 0.3543
0.295
M 10.0 0.3937 3 '/e "/3Z 0.3 15
0.3937 0.05906
M 11.0 1 0.248 11/32
0.4331 0.05906 0.3 150 3 318
M 12.0 0.4724 0.295
0.06890 0.3740 1 118 3 '12
M 14.0 0.5512 0.354
0.4409 3 314
0.07874
0.394
M 16.0 0.6299 0.4921 1 '14 4
M 18.0 0.7087
0.441
0.5512 1 7/18 4 7/16
M 20.0
0.7874 0.09842
~
M 22.0 0.8661 0.492
0.6299 1 112 4 5/83
M 24.0 0.9449 0.551
0.7087 1 "4 5 1/83
0.11811
M 27.0 1.0630
1 314 5 6/16
0.630
0.7874
M 30.0 1.1811 1 7i8
5 7/16
O. 13780
M 33.0 1.2992 0.8819 2 0.709
515/i~ 7/8
M 36.0 0.787
1.4173 0.9842 2 '14 6 "IS
0.15748
M 39.0 1.5354
1.1024 2 3/83 0.882
611/1~
M 42.0
1.6535
O. 1771 7
M 45.0 1.7717
1.2402 2 618 7 3/83 0.984
M 48.0
1.8898
O. 19685
M 52.0 2.0472
1.3976 7 7iS 1.102 1 7/32
M 56.0 2.2047
0.21 654
M 60.0 2.3622 3
811/16
1.5748 1.240
M 64.0 2.5197
3 1/83 81*/18
0.23622
M 68.0
2.6772 1.7717 3 'le 9 3/16 1.398
---------------------- Page: 6 ----------------------
ISOlR 529 - 1966 (E)
NOTES
1. Tolerances
(a) THREAD AND OVERALL LENGTH
Negative deviations in inches, according to the following indications :
Nominal diameter of tap
Maximum deviation
over including
on I and L
- '132 - 3/32
7/32 '12 - 110
-
'12 1'12
1'12 -
- '14
(b) SHANK DIAMETERS AND DRMNG SQUARES
Tolerances in accordance with IS0 Recommendation R 237, Diameters of Shunks and
Sizes of Driving Squares for Rotating Tools with Parallel Shanks,
- on diameter d,:
h9* for precision shanks,
hl 1 * for non-precision shanks ;
- on the across flats dimension a:
hll, *
h12* (including errors of form of the square and of its position in relation to the shank).
2. Marking
The tap should be marked, on the shank, by any means not impairing the metal surface.
Marking should consist of the following:
Thread
In accordance with the standard designation (see tables in sections 3 to 8, first column)
completed by
- an indication of the class of tap thread;
- a clear mark (the letter L for example) for left-hand threads.
Serial taps
A mark indicating the order in which the taps should be used, except for the finishing tap.
Material.
* See IS0 Recommendation R 286, IS0 System of Limits and Fits - Part I: General, Tolerances and Deviations. For inch
size taps, direct conversion into inches from the metric values of h9, hll and h12.
- 10 -
---------------------- Page: 7 ----------------------
ISOIR 529 - 1966 (E)
4. FINE PITCH METRIC THREADS
d = I to2.5mm
d=3to/Omm
4.1 Dimensions in millimetres
I
Square
4
Designation 1 no:ha, 1 Pitch
L
min.
M 1.0xO.20
' 1.0
M 1.1x0.20
1.1
1 5.5 38.5 4.5
M 1.2 x0.20
1.2
0.20
M 1.4x0.20
1.4 2.50 17 40.0
2.00 4
M 1.6x0.20
1.6
5.0
M 1.8x0.20
1.8
8.0 41 .O
M 2.0x0.25
2.0
5.5
-~
0.25
M 2.2x0.25
2.2
~~
2.80 I 9.5
44.5 6.0 2.24
M 2.5x0.35
2.5
___~
5
M 3.0x0.35
3.0 0.35
48.0 2.12 2.50
7.0
M 3.5x0.35
3.5 3.55 3-15 I :::O
50.0 2.50 2.80
M 4.0x0.50
4.0
2.80 3.15
13.0 53.0
8.0 6
M 4.5 x0.50
4.5 4.50
3.15 3.55
0.50
M 5.0x0.50 I 5.0 I
5.00 I 16.0 58.0
3.55 4.00
9.0
7
M 5.5 x0.50
I 5.5 I 5.60 I 17.0 62.0
4.00 4.50
M 6.0 x0.75
4.50 5.00
0.75 =I 7.10 19.0
66.0 11.0 8
M 7.0x0.75
7.0
5.30
5.60
I
M 8.0x1.00
8.0
6.00 13.0 6.30
9
______
=I 9.00 19.0 69.0
M 9.Ox1.00
9.0 1.00
7.10 14.0 7.10 10
___-
M 10.0 x 1.00
10.00 1 20.0 76.0 7.50 15.0 8.00
11
M 10.0 x 1.25
1 1.25
- 11 -
---------------------- Page: 8 ----------------------
ISOIR 529 - 1986 (E)
4.1 Dimensions in millimetres (continued)
square
d
di d2
Designation Pitch
L
nominal
h9 min.
M 12.0 x 1.25 1.25 24.0 84.0
--
12.0
9.5
7.5 10
M 12.0 x 1.50
1 SO 29.0 89.0
M 14.0 x 1.25 1.25
25.0 90.0
14.0
M 14.0 x 1.50 1 SO
11.2 30.0 95.0
9.0 12
M 15.0 x 1.50 15.0 1.50
30.0 95.0
1.50
M 16.0 x 1 SO 16.0 32.0
102.0
12.5
10.0 13
1 SO
M 17.0 x 1.50 17.0 32.0 102.0
____-
1 SO
M 18.0 x 1.50
18.0 33.0"
108.0,
2.00
M 18.0 x2.00
14.0
11.2 I 14
1.50
M 20.0 x 1 SO
--___
20.0
33.0* 108.0*
2.00
M 20.0 x 2.00
1 SO
M 22.0 x 1.50
1 22.0 35.0*
16.0 115.0* 16
12.5
2.00
M 22.0 x 2.00
1 SO
M24.0x1.50 I
24.0 35.0 120.0
2.00
M 24.0 x2.00 I
18.0 18
14.0
1 SO
M25.0 x 1 SO
25.0
35.0 120.0
2.00
M 25.0 x 2.00
1 SO
M27.0x1.50
27.0 37.0 127.0
2.00
M 27.0 x 2.00
1 SO
M 28.0 x 1.50
28.0
37.0 127.0
20.0
M 28.0 x 2.00 2.00 20
16.0
M3o.Ox1.50
1 SO
37.0
127.0
2.00
M 30.0 x 3.00 3.00 48.0 138.0
M 32.0 x 1 SO 1 SO
37.0 137.0
M 32.0 x 2.00 2.00
1.50
M 33.0 x 1.50 18.0 22
22*4
37.0
137.0
I
2.00
51.0
vl 33.0 x 3.00 3.00 151.0
____
1 SO 39.0
144.0
1 SO
M 36.0 x 1 SO
144.0 24
20.0
M36.0x2.00 36.0 2.00
M 36.0 x 3.00 3 .O0 57.0 162.0
~
M 39.0 x 1 SO 1 SO
39.0 149.0
M39.0x2.00 39.0 2.00
I --
M 39.0 x 3.00 3.00 60*o 170.0
~~
28.0 1 22.4 26
,
M40.0x1.50 1 SO
39.0 149.0
M40.0x2.00 40.0 2.00
M 40.0 x 3.00 3.00 -7 170.0
1 60.0 I
As a departure from general Tables A.7.1 and A.7.2, the lengths I and L which are marked with an asterisk in the
present table, have been unified to a common value for M 18 and M 20 threads and also for the M 22 thread.
- 12 -
---------------------- Page: 9 ----------------------
ISOlR 529 - 1966 (E)
4.1 Dimensions in millimetres (concluded)
dz
di
Pitch
a
min.
h9
hl 1
IlL
M 42.0 x 1.50 1.50
39.0 1 149.0
M 42.0 x 2.00
2.00
42.0 28.0
22.4
M42.0 x3.00
3.00
60.0 170.0
M 42.0 x 4.00
4.00
~-
M 45.0 x 1 SOI 1.50
45.0 165.0
M 45.0 x 2.00 2.00
~~
45.0
M 45.0 x 3.00 3.00
67.0 187.0
M 45.0 x 4.00
4.00
~~
M48.0 x 1.50 I
1.50
165.0
45.0
M 48.0 x 2.00 2.00 31.5
28
25 .O
-______
48.0
M 48.0 x3.00 3 .O0
67.0 187.0
M 48.0 x 4.00 4.00
M50.0x1.501
1.50
45.0 1 165.0
M 50.0 x 2.00 50.0
2.00
M 50.0 x 3.00 I 3.00
_.
M52.0x1.501 1.50
M 52.0 x 2.00
2.00
52.0
M 52.0 x 3.00 3.00
70.0
M 52.0 x 4.00
4.00
I= 175.0
M 55.0 x 1.50 I 1.50
45.0
M 55.0 x 2.00 2.00
I 55.0 35.5
28.0 31
M 55.0 x 3.00 3 .O0
70.0 200.0
M 55.0 x 4.00 I 4.00
M 56.0 x 1.50 1.50
45.0 175.0
M 56.0 x 2.00 2.00
M 56.0 x 3.00 3.00
70.0 200.0
M 56.0 x 4.00 4.00
234.0
45.0 79.0 35.5 38
M 75.0 x 6.00 I 75.0
83.0 258.0
6.00
50.0 42
40.0
86.0 261 .O
M 90.0 x 6.00 90.0
M 95.0 x 6.00
89.0 279.0
45.0 46
M 100.0 x 6.00 I 100.0
-
NOTE. - Tolerances and marking, see Notes after Table 3.1.
- 13 -
---------------------- Page: 10 ----------------------
!SOIR 529 - 1966 (E)
4.2 Dimensions in inches
Square
d
di dz
Designation Pitch
1 L
a
nominal h9 min.
12
hl 1
-
M 1.0xO.20
M 1.1 x0.20
M 1.2x0.20
0.00787
M 1.4x0.20 0.0551 0.0984
0.079
5/3:
M 1.6x0.20
M 1.8x0.20
1
--
0.00984
M 2.2x0.25 I 0.0866
0.1102
3/a 0.088
--
0.01378 0.1240
7/16 0.083
0.098
0.1398
0.098
0.110
0.1575
0.110 O. 124
'12
O. 1772 O. 124
O. 140
0.01969
O. 1969
0.140
5ia 0.157
M 5.5x0.50 I 0.2165
0.2205 11/18 2 7t16 0.157
0.177
M 6.0x0.75 0.2362 0.2480
0.177
0.197
0.02953 2 "0
5116
M 7.0~0.75 le
0.2795
0.209 0.220
M 8.0X1.00
03150 0.3150 0.236
0.248
M 9.Ox1.00 0.3543
0.03937 0.3543 0.280
9i1 6 0.280
M 10.0 x 1.00
0.3937 0.3937 3 0.295
0.315
M 10.0 x 1.25 0.04921
M 12.0 x 1.25
0.04921
15/18 3 5/16
0.4724 0.3740
0.295
M 12.0 x 1.50
0.05906
1 '18
M 14.0 x 1.25 0.04921
1
i 0.5512
M 14.0 x 1.50 0.05906
0.4409 1 3/16
0.354
0.05906
1 3/1~
0.05906
4
0.4921
0.394
0.05906
4
M 18.0 X 1.50
3.05906
0.7087
M 18.0 x2.00
3.07874
0.5512
0.441
M 20.0 x 1.50 I o.7874
5.05906
M 20.0 x 2.00
1.07874
vl22.0 x 1.50
1.05906
0.8661 0.6299
0.492
v122.0 x 2.00
).O7874
vl24.0x1.50
c 0.9449
d 24.0 x 2.00
o.o7874/ 0.7087
0.551
d 25.0 x 1.50
0.05906
0.9843
1
vl25.0 x 2.00
0.078741
As a departure from general Tables A.7.1 and A.7.2, the lengths I and L which are marked with an asterisk in the
M 18 and M 20 threads and also for the M 22 thread.
present Table, have been unified to a common value for
- 14 -
---------------------- Page: 11 ----------------------
ISOlR 529 - 1966 (E)
4.2 Dimensions in inches (continued)
Square
d
di dz
Designation
Pitch 1 1
a
nominal min.
h9
hl 1
M 27.0 x 1.5( 0.05906
1 .O630
M 27.0 x 2.M
0.07874
M28.0 x 1.5(
0.05906
1.1024
M 28.0 x 2.M
0.07874 0.7874
0.630
M 30.0 x 1.5(
0.05906
1 7/16
M 30.0 x 2.0( 1.1811 0.07874
M 30.0 x 3.M 0.1 181 1
1 718
M 32.0 x 1.5( 0.05906
1.2598 1 7/16
M 32.0 x 2.M
0.07874
M 33.0 x 1.5(
0.05906 0.8819
0.709
1 7/16
M 33.0 x 2.01
1.2992 0.07874
M33.0 x3.0( 0.11811
2
M 35.0 x 1.54 1.3780 0.05906
M 36.0 x 1.5(
0.05906
0.9842
0.787
M 36.0 x 2.01 1.4173 0.07874
M 36.0 x 3.0(
0.11811 6 3/s
M 39.0 x 1.5(
0.05906
1 8/16 5 7i8
M 39.0 x 2.0( 0.07874
1.5354
M 39.0 x 3.0i 0.1 181 1
2 3i8 611/16
0.882
1.1024
M 40.0 x 1.5( 0.05906
1 9/16 5 7i8
M 40.0 x 2.01
1.5748 0.07874
M 40.0 x 3.0i
0.1 181 1 2 3is 611/1e
M 42.0 x 1.5î 0.05906
1 9/16
M 42.0 x 2.M 0.07874
--
1.6535 1.1024 0.882
M 42.0 x 3.M
0.11811
2 3i8
M 42.0 x 4.M
0.15748
M45.0 x1.5(
0.05906
6 '12
M 45.0 x 2.M
0.07874
1.7717
M 45.0 x 3.N 0.11811
2 618 7 318
M 45.0 x 4.W O. 15748
M 48.0 x 1.5û
0.05906
6 '/z
M 48.0 x 2.W
0.07874 1.2402 0.984
1.8898
M 48.0 x 3.W 0.11811
7 810
M 48.0 x 4.00 O. 15748
M 50.0 x 1.50 0.05906
6 '/a
M 50.0 x 2.00
1.9685 0.07874
M50.0 x3.00
0.1 181 1 2 5i8 7 Ys
M 52.0 x 1.50
0.05906
6 7/s
M 52.0 x 2.00
0.07874
2.0472 1.3976 1.102
M 52.0 x 3.00 0.11811
7 71s
M 52.0 x 4.00 0.15748 1
1
- 15 -
---------------------- Page: 12 ----------------------
..
ISOlR 529 - 1966 (E)
4.2 Dimensions in inches (concluded)
~
Square
di dz
Designation 1
1
a
h9 min.
hl 1
M 55.0 x 1.50
0.05906
6 '1s
M 55.0 x2.00
0.07874
2.1654
M 55.0 x 3.00
0.11811
7 718
M 55.0 x 4.00
O. 15748
1.3976
1 .lo2
M 56.0 x 1.50
0.05906
6 '/a
M 56.0 x 2.00
0.07874
2.2047
M 56.0 x 3.00
0.11811
7 'le
M 56.0 x 4.00
O. 15748
M 70.0 x 6.00 2.7559
M 72.0 x 6.00 2.8346 1.7717
9 Y16
1.398
M 75.0 x 6.00
2.9528
M 76.0 x 6.00
2.9921
~
10 'Is
M 80.0 x 6.00
1.9685
1.575
M 85.0 x 6.00 3.3465
3 318
M 90.0 x 6.00 3.5433
M 95.0 x 6.00
3.7402
2.2047 3 '12
1.772
M 100.0 x 6.00
3.9370
NOTE. - Tolerances and marking. see Notes after Table 3.2.
- 16 -
---------------------- Page: 13 ----------------------
ISOlR 529 - 1966 (E)
5. UNIFiED COARSE (UNC) THREADS
Nos. I to 3
I- L I
Nos. 4 to I2 and
‘I, to ‘I, in
5.1 Dimensions in miiiimetres
i
Square
d
da
Designation Pitch
h9 dllllL
Il
nominal
min.
No. 1 - 64-UNC I 1.854
0.397 2.50
8.0 41.0 5.5 2.00
4
--
0.454
2.80
9.5 44.5 6.0
2.24
0.529
\
-
NO. 4 - 40-UNC
’ 2.845
2.12 5
0.635 3.15
11.0 48.0 2.50 1
NO. 5 - 40-UNC
3.175
2.36 7.0
NO. 6 - 32-UNC
3.505
3.55 13.0 50.0
2.50
0.794
NO. 8 - 32-UNC
4.166
4.50 13.0 53.0 3.15
8.0
NO. 10-24-UNC
4.826
5.00 16.0 58.0 3.55
“I 7
1 .O58
9.0
NO. 12 - 24-UNC
5.486
5.60 17.0 62.0 4.25
4.50
--
‘/4 - 20-UNC
6.350 1.270
6.30 19.0 66.0 4.50
11.0 5.00 8
--
5/i6 - 18-UNC
7.938 1.411
8.00 22.0 72.0 6.00 13.0
6.30 9
--
3/û - 16-UNC
9.525 1.588
10.00 24.0 80.0 7.50 15.0
8.00 11
- 17 -
---------------------- Page: 14 ----------------------
ISOIR 529 - 1966 (E)
5.1 Dimensions in millimetres (concluded)
Square
di dz
i
Designation Pitch
I L
h9 min.
1 no:ial hill 1 IZ
-
11.112 1.814 8.0 25.0 85.0
6.3 9
__-
1.954 9.5 29.0 89.0 7.5 lo
12.700
--
2.117 11.2 30.0 95.0 9.0 12
14.288
___-
5/8 - 11-UNC 2.309 12.5 32.0 102.0 10.0 13
15.875
--
3/4 - 10-UNC
2.540 14.0 37.0 112.0 11.2 14
19.050
--
__~
7/a - FUNC
2.822 16.0 38.0 118.0 12.5 16
22.225
-~
3.175 18.0 45.0 130.0 14.0 18
1-s-uNcl25.400
--
20.0 48.0 138.0 16.0 20
--
3.629
22.4 51.0 151.0 18.0 22
--
57.0
25.0 162.0 20.0 24
__-
4.233
60.0 170.0
28.0 22.4 26
__~
67.0
5.080 31.5 187.0 25.0 28
2 - 4I/z-UNC I 50.800 70.0
35.5 200.0 28.0 31
-~ --
5.644
76.0
221 .O
40.0 31.5 34
79.0
224.0
--
79.0 234.0 35.5 38
45.0
--
83.0 258.0
3'/4 - (I-UNC I 82.550 6.350 40.0 42
50.0
86.0 261 .O
33/4 - 4-UNC 95.250
56.0 89.0 279.0
4-4-UNC IkGG
45+0 I 46
NOTE. - Tolerances and marking, see Notes after Table 3.1.
- 18 -
---------------------- Page: 15 ----------------------
ISOlR 529 - 1966 (E)
I
5.2 Dimensions in inches
Square
Numbei
d
dz -
Designation of thread
1 I L 11
a
nominal
h9 min.
per inct
hl 1
-
NO. 1 - 64-UNC 0.073 64 0.0984 I 5Il6
0.07!
No. 2 - 56-UNC 0.086 56
0.1102 0.081
3i8
\
No. 3 - 4û-UNC 0.099 48
NO. 4 - 40-UNC 0.112 0.083
0.1240 7Il6
40 0.09t
No. 5 - 40-UNC O. 125 0.093
NO. 6 - 32-UNC 0.138 0.1398 I 112 1 15/16 0.098 0.11(
32
NO. 8 - 32-UNC 0.164 0.1772 I 112 2 1/16 O. 124 0.14(
l/4
No. 10 - 24-UNC
o. 190 0.1969 0.140 0.15;
518
-
24
No. 12 - 24-UNC
0.216 0.2205 11/16 2 7/16 O. 167 0.17;
-
0.177
0.250 20 0.2480 2 5i8 0.19;
3/4
5/16 - i8-u~~ 0.3150 0.236
0.312 18 2 7i8 0.246
718
3/s - 16-UNC 0.295 0.315
0.375 16 0.3937 15/16 3 118 7/16
7/ia - 14-UNC 0.3150 1 0.248
0.438 14
112 - 13-UNC 13 0.3740
0.500 11/8 0.295 13/3:
-
- ~ZUNC 12 0.4409
0.562 13/ie 0.354
-
sis - II-UNC 0.625 11 0.4921 4
11/4 0.394
- 10-UNC 0.750 10 0.5512 4 7i16 9.441
17/16 9/16
7i8 - 9-u~~
0.875 9 0.6299 ll/z 4 5i8 3.492
- &UNC
1 1 .000 8 0.7087 1314 5 '18 3.551
-
1'/8 - 7-UNc 1.125 0.7874 17/s 5 7/16 1.630
-
7
11/4 - 7-UNC
1.250 0.8819 2 515/1S 1.709
131~ - CUNC 1.375 6 3/s 1.787
6
l'/z - 6-UNC
1.500 1.1024 23/8 611/ie 1.882
13/4 - 5-UNC 1.750 5 1.984
1.2402 25/8 7 3i8
...