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GOST 21249-1-1996
60°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
M20
2.5
29
28.43
22
21.48
13
12.57
16
15.57
11
14
3
4
17
16.57
2
M24
3
35
34.38
28
27.48
15
14.57
19
18.48
14
19
4
5
22
21.48
2.5
M27
3
41
40.38
30
29.48
17
16.57
22
21.48
18
22
5
5
24
23.48
2.5
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