GOST 21249 (-1) - 1996 Blunt Bolts for General Purpose - Basic Parameters and Dimensions


Unit: mm
俄标GOST 21249 (-1) - 1996 GOST21249 21249 Blunt Bolts for General Purpose - Basic Parameters and Dimensions
俄标GOST 21249 (-1) - 1996 GOST21249 21249 Blunt Bolts for General Purpose - Basic Parameters and Dimensions
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Thread Size
d
8 10 12 16 20 24 27 30 36 42
dc max=nominal size
min
dk max=nominal size
min
d1 max=nominal size
min
ds max=nominal size
min
h
k
m
n
s
12 14 18 23 29 35 41 44 48 56
11.57 13.57 17.57 22.48 28.48 34.38 40.38 43.38 47.38 55.26
10 16 16 22 22 28 30 35 42 55
9.64 15.57 15.57 21.48 21.48 27.48 29.48 34.38 41.38 54.26
6 7 9 11 13 15 17 19 23 27
5.7 6.64 8.64 10.57 12.57 14.57 16.57 18.48 22.48 26.48
6 8 9 13 16 19 22 25 30 36
5.7 7.64 8.64 12.57 15.57 18.48 21.48 24.48 29.48 35.38
4 4 6 7 11 14 18 18 20 24
6 10 10 14 14 19 22 22 25 30
1 1 2 2 3 4 5 5 5 6
2 2 4 4 4 5 5 5 5 6
8 13 13 17 17 22 24 27 32 41
Weight of per 1000 steel products(≈kg)
- - - - - - - - - -
Length of Thread b
- - - - - - - - - -
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