screws(self-tapping screw,tapping screws)
Our production is in compliance with ISO, DIN, BS,ANSI and JIS standards or provide special fastening products made to customers' samples or drawings.
specification:
1 name:GB845-76
2 size:M4*50
3 surface:yellow,zinc plate,plain
4 grade:4.8,8.8,10.9,12.9grade