flat hexagon bolt
The top and bottom of the head of the edge can be round or Angle
Hex mouth can slightly rounded or sink down

Carried standard

mm

Nominal bore

mm

Nominal lengh

Screw thread

makings

Cevel of performance

GB5782

0.8-10mm

1-180mm

6g

steel

Stainless steel

8.810.912.9
A2-50A2-70

GB5783

1-180mm

GB/T1228

0.8-10mm

1-180mm

8.8S10.9S

SH3404

0.8-10mm

1-180mm

standard code

HG20613

0.8-10mm

1-180mm

8.810.912.9
A2-50
A2-70

HG20634

0.8-10mm

1-180mm

DL439

Can be customized according to the standard