Machine Screws  机牙螺丝 Specifications     规格及长度范围

Fine Pitch Screws  细牙距螺丝       Compare with common machine screw,fine pitch screw can provide better adjustment accuracy.

 

Nylock Screw    耐烙螺丝        A Special adhesive is attached to the screw surface,it greatly improves the anti-loosening ability.

 Sems Screw

Combine with screw and washers which can move without falling out.