GB /T 70.2 - 2000 Hexagon socket flat round head screws


Unit: mm
Screw Thread
d
M3 M4 M5 M6 M8 M10 M12 M16
P Pitch
a max
min
da max
dk max
min
e min
k max
min
r min
s Nominal Size
max 12.9
Other performance grades
min
t min
w min
Minimum tensile load(N) 8.8
10.9
12.9
0.5 0.7 0.8 1 1.25 1.5 1.75 2
1 1.4 1.6 2 2.5 3 3.5 4
0.5 0.7 0.8 1 1.25 1.5 1.75 2
3.6 4.7 5.7 6.8 9.2 11.2 14.2 18.2
5.7 7.60 9.50 10.50 14.00 17.50 21.00 28.00
5.4 7.24 9.14 10.07 13.57 17.07 20.48 27.48
2.3 2.87 3.44 4.58 5.72 6.86 9.15 11.43
1.65 2.20 2.75 3.3 4.4 5.5 6.60 8.80
1.40 1.95 2.50 3.0 4.1 5.2 6.24 8.44
0.1 0.2 0.2 0.25 0.4 0.4 0.6 0.6
2 2.5 3 4 5 6 8 10
2.045 2.56 3.071 4.084 5.084 6.095 8.115 10.115
2.060 2.58 3.080 4.095 5.140 6.140 8.175 10.175
2.020 2.52 3.020 4.020 5.020 6.020 8.025 10.025
1.04 1.3 1.56 2.08 2.6 3.12 4.16 5.2
0.2 0.3 0.38 0.74 1.05 1.45 1.63 2.25
3220 5620 9080 12900 23400 37100 53900 100000
4180 7300 11800 16700 30500 48200 70200 130000
4910 8560 13800 19600 35700 56600 82400 154000
①,emin=1.14smin
②,GB/T 3098 . 1 specifies 80% of the value .
Alternative history
Suppliers
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1
China Mainland Suzhou Yongchuang Fastener Factory
Mr. Tang
Mobile Phone: +86-15298892886 Telephone: +86-512-66700967
Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm
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