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UDC 621.882. /.3 : 621.753.1
t
IS0
I NT ERN AT I ON AL ORGANIZATION FOR STANDARDIZATION
IS0 RECOMMEN DATION
J
R 733
HEXAGON BOLTS AND NUTS
METRIC SERIES
TOLERANCES ON WIDTHS ACROSS FLATS,WIDTHS ACROSS CORNERS
1st EDITION
May 1968
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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
of ISO.
a member
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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ISO/R 733-1968 (E)
IS0 Recommendation R 733 May 1968
HEXAGON BOLTS AND NUTS
METRIC SERIES
DTHS ACROSS FLATS, WIDTHS ACROSS CORNERS
TOLERANCES ON W
n
c
U
-2-
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ISO/R 733-1968 (E
Dimenïions in millimetres
Width across flats s Width across corners e
max. min. min.
Regular and Regular and
Nominal Finished Finished
semi-finished semi-finished
value products
products
products products
olerance Tolerance
zone zone
3.2 3.2 3.08 3.48
4 4 3.88 4.38
5 5 4.88 tl 12 5.5 1
5.5 5.5 5.38 6.08
7 7 6.85 7.74
8.87
8 8 7.85 7.64 8.63
__-
9.64 10.89
10 10 9.78 11.05
11 11 10.73 10.57 12.12 11.94
12 12 11.73 11.57 13.25 13.07
h 14
13 13 12.73 12.57 14.38 14.20
14 14 13.73 13.57 15.51 15.33
17 17 16.73 16.57 18.90 18.72
h 13
19 19 18.67 18.48 21.10 20.88
22 22 21.67 21.16 24.49 73.9 1
24 24 23.67 23.16 26.75 26.17
27 27 26.67 26.16 30.14 29.56
30 30 29.67 29.16 33.53 32.95
35.03
32 32 31.61 3 1 .O0 35.72
39.98 39.55
36 36 35.38 35.00
45.63
41 41 40.38 40.00 45.20
46 46 45.00 51.28 50.85
45.38
50 50 49.38 49.00 55.80 55.37
55 55 54.20 53.80 61.31 60.79
60 60 59.26 58.80 66.96 66.44
65 72.09
65 64.26 63.80 72.61
70 70 69.26 68.80 78.26 77.74
75 75 74.26 73.80 83.9 1 83.39
80 80
...