In terms of inner hexagon, there are two versions of the national standard, one is GB70-76, the 76 y...

Screws refer to parts used in construction machinery. It is a type of threaded parts with sharp ends...

If the iron precision screw is wet, or soaked in liquid, or wet, etc., it is very likely to rust. So...

Nuts are nuts, and they are the same object. The differences between screws, bolts, and nuts (nuts) ...

Hexagon socket screws are widely used in many industries. This is inseparable from some of the chara...

Zinc Plated Hex Bolts, external hexagonal long screws, long bolts, hexagon socket long screws, long ...