Metric coarse thread is deep, neat and clear with even force, not easy to slip;
Every bolt have smooth surface without burrs, and sturdy & duable performance overall.
Description
Flange screws are mainly a type of fasteners composed of two parts: hexagonal head and flange (the gasket below the hexagon is fixed with the hexagon) and screw (cylinder with external thread), which need to be matched with the nut to fasten and connect two parts with through holes.