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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Hexagon Bolts for High-Strength Structural Bolting with Large Width Across Flats (Short Thread Length - Product Grade C—Property Classes 8.8 and 10.9

ISO 7412 - 1984

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国际ISO 7412 - 1984 ISO7412 7412ISO Hexagon Bolts for High-Strength Structural Bolting with Large Width Across Flats (Short Thread Length - Product Grade C—Property Classes 8.8 and 10.9
Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Screw Thread
d
M12 M16 M20 (M22) M24 (M27) M30 M36
P Pitch
b L≤100mm
L＞100mm
c max
min
da max
ds max
min
dw min
e min
k Nominal Size
max
min
k1 min
r min
s max
min
1.75 2.0 2.5 2.5 3 3 3.5 4
25 31 36 38 41 44 49 56
32 38 43 45 48 51 56 63
0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8
0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
14.7 18.7 23.24 25.24 27.64 31.24 34.24 41
12.70 16.70 20.84 22.84 24.84 27.84 30.84 37.00
11.30 15.30 19.16 21.16 23.16 26.16 29.16 35.00
19.2 24.9 31.4 33.3 38 42.8 46.5 55.9
22.78 29.56 37.29 39.55 45.2 50.85 55.37 66.44
7.5 10 12.5 14 15 17 18.7 22.5
7.95 10.75 13.40 14.90 15.90 17.90 19.75 23.55
7.05 9.25 11.60 13.10 14.10 16.10 17.65 21.45
4.9 6.5 8.1 9.2 9.9 11.3 12.4 15
0.6 0.6 0.8 0.8 1 1.2 1.2 1.5
21 27 34 36 41 46 50 60
20.16 26.16 33 35 40 45 49 58.8
Length of Thread b
- - - - - - - -
①,dwmax= Sactual
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