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Click Specification

(Non-preferred) dimensions in parentheses.

Small hexagon fit bolts

GB 27 - 1976

Display drawing:

国标GB 27 - 1976 GB27 27GB Small hexagon fit bolts

 *Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
Nominal Length L Tips:seclect Nominal Length L and get Weight .
Thread Size
d
M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27) M30 M36 M42 M48
P Pitch
ds max
min
s max
min
k Nominal Size
max
min
dp
r
e
g
L2
1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 4 4.5 5
7 9 11 13 15 17 19 21 23 25 28 32 38 44 50
6.97 8.97 10.965 12.965 14.965 16.965 18.955 20.955 22.955 24.955 27.955 31.95 37.95 43.95 49.95
10 12 14 17 19 22 24 27 30 32 36 41 50 55 65
9.8 11.76 13.76 16.76 18.72 21.72 23.72 26.72 29.72 31.66 35.66 40.66 49.66 54.6 64.6
4 5 6 7 8 9 10 11 12 13 15 17 20 23 26
4.24 5.24 6.24 7.29 8.29 9.29 10.29 11.35 12.35 13.35 15.35 17.35 20.42 23.42 26.42
3.76 4.76 5.76 6.71 7.71 8.71 9.71 10.65 11.65 12.65 14.65 16.65 19.58 22.58 25.58
4 5.5 7 8.5 10 12 13 15 17 18 21 23 28 33 38
0.25 0.25 0.25 0.25 0.25 0.25 0.5 0.5 0.5 0.5 0.5 0.5 1 1 1
11.5 13.8 16.2 19.6 21.9 25.4 27.7 31.2 34.6 36.9 41.6 47.3 57.7 63.5 75
2.5 2.5 2.5 2.5 3.5 3.5 3.5 3.5 3.5 5 5 5 5 5 5
1.5 1.5 2 2 3 3 3 4 4 4 5 5 6 7 8
L1 (±1)
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Weight of per 1000 steel products(≈kg)
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