GB /T 14 - 2013 Mushroom Head Square Neck Bolts


Unit: mm
Screw Thread
d
M5 M6 M8 M10 M12 M16 M20
P Pitch
b L≤125
125<L≤200
L>200
dk max=nominal size
min
ds max
k1 max
min
k max
min
s max
min
0.80 1.00 1.25 1.50 1.75 2.00 2.50
16 18 22 26 30 38 46
- - 28 32 36 44 52
- - - - - 57 65
13 16 20 24 30 38 46
11.9 14.9 18.7 22.7 28.7 36.4 44.4
5.48 6.48 8.58 10.58 12.7 16.7 20.84
4.1 4.6 5.6 6.6 8.8 12.9 15.9
2.9 3.4 4.4 5.4 7.2 11.1 14.1
3.1 3.6 4.6 5.8 6.8 8.9 10.9
2.5 3 4 5 6 8 10
5.48 6.48 8.58 10.58 12.7 16.7 20.84
4.52 5.52 7.42 9.42 11.3 15.3 19.16
①,dsmin≈Thread diameter
Alternative history
Suppliers
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1
China Mainland Jingjiang Datong Fastener Factory
Mr. Ni
Mobile Phone: +86-13285218132 Telephone: +86-523-84211001
Material: 10B21, 8A, 40Cr, 35CrM0; Specification: M4-M20; Surface Treatment: As Processed, Cold Plating, Hot Plating; Nominal Length: 15mm-300mm; Grade: 4.8, 8.8, 10.9, 12.9
Contact us via Email
2
China Mainland Ruian Huadeli Standard Parts Co., Ltd.
Mr. Zhou
Mobile Phone: +86-13868481084 Telephone: +86-577-65201347
Material: 35#/45#, Nominal Diameter: φ6~22mm, Nominal Length: 15~300mm, Surface Treatment: Galvanizing/ Blackening
Contact us via Email
3
China Mainland Ruian Yipin Stainless Steel Products Co., Ltd.
Manager Xue
Mobile Phone: +86-13353381559 Telephone: +86-577-65515520
Material: Stainless Steel 200 304 316; Specifications: M6-M12
Contact us via Email
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