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NF E25-801-8-2008
High strength hexagon fit bolts with large widths across flats for structural steel bolting-System HV
Nom
P
ds max
ds min
e min
r min
s max
s min
k max
k min
M12
1.75
12.85
12.74
23.91
1.2
22
21.16
8.45
7.55
M16
2
16.85
16.74
29.56
1.2
27
26.16
10.75
9.25
M20
2.5
20.84
20.71
35.03
1.5
32
31
13.9
12.1
M22
2.5
22.84
22.71
39.55
1.5
36
35
14.9
13.1
M24
3
24.84
24.71
45.2
1.5
41
40
15.9
14.1
M27
3
27.84
27.71
50.85
2
46
45
17.9
16.1
M30
3.5
30.83
30.67
55.37
2
50
49
20.05
17.95
M36
4
36.83
36.67
66.44
2
60
58.8
24.05
21.95
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