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GB /T 31.2-1988 Hexagon bolts with split pin hole on shank-reduced shank


Unit: mm
国标GB /T31.2-1988 GB31.2 31.2GB(GB31-1976 Hexagon bolts with split pin hole on shank-reduced shank
Nominal Length L Tips:seclect Nominal Length L and get Weight .
Screw Thread
d
M6 M8 M10 M12 (M14) M16 M20
P Pitch
b L≤125
125<L≤200
k Nominal Size
min
max
s max
min
e min
d1 max
min
L1 Nominal Size
1.00 1.25 1.50 1.75 2.0 2.0 2.5
18 22 26 30 34 38 46
/ 28 32 36 40 44 52
4 5.3 6.4 7.5 8.8 10 12.5
3.76 5.06 6.11 7.21 8.51 9.71 12.15
4.24 5.54 6.69 7.79 9.09 10.29 12.85
10 13 16 18 21 24 30
9.64 12.57 15.57 17.57 20.16 23.16 29.16
10.89 14.20 17.59 19.85 22.78 26.17 32.95
1.90 2.4 2.9 3.4 3.4 4.48 4.48
1.50 2.00 2.50 3.00 3.00 4.00 4.00
3 4 4 5 5 6 6
Weitht of per 1000 steel products(≈kg)
- - - - - - -
①,ds≈Pitch diameter
Relevant Standards
1
六角头螺杆带孔螺栓 A和B级
[GB]
GB /T 31.1-1988
Hexagon bolts with split pin hole on shank A and B Suppliers(1)
2
小六角头螺杆带孔螺栓
[GB]
GB 23-1976
Bolts, small hexagon head with hole through the shank
3
小六角头螺杆带孔导颈螺栓
[GB]
GB 24-1976
Bolts, small hexagon head with fit neck and hole through the shank
4
六角头螺杆带孔螺栓
[GB]
GB /T 31.1-2013
Hexagon bolts with split pin hole on shank Suppliers(1)
5
精制美制六角头杆部带孔螺钉
[BS]
BS 1768-1963
Unified hexagon head bolts, washer faced