Common specifications of screws
2022-11-25
A: Metric screw B: American screw C: English screw
A: Metric mechanical screw: Metric
Ex: M3 x 6 – P P B: M3 machine screw, 6mm long, cross, round flat head, black plated
Finish Code: appearance treatment specification
Head Code: Head shape.
Screw head shape. Cylindrical head. Semi countersunk head. Countersunk head. Spherical cylindrical head. Pan head. Half round head. Hexagon head.
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Nantong Yonggu Standard Parts Factory
No. 66, Honghai Road, Haimen Street, Haimen City, Jiangsu Province, China.

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