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GOST 21249-1-1996
75°Square head blunt bolts-Table1
Nom
P
dc max
dc min
e max
e min
d1 max
d1 min
ds max
ds min
h
k
h1
n
s max
s min
r
M8
1.25
12
11.57
10
9.64
6
5.7
6
5.7
4
6
1
2
8
7.64
1
M10
1.5
16
15.57
14
13.57
7
6.64
8
7.64
4
10
1
2
13
12.57
1
M12
1.75
18
17.57
16
15.57
9
8.64
9
8.64
6
10
2
4
13
12.57
2
M16
2
23
22.43
22
21.48
11
10.57
13
12.57
7
14
2
4
17
16.57
2
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