Hexagon head flange bolts are a type of fastener consisting of a hexagonal head and a flange plate (the gasket under the hexagon is fixed with the hexagon) and a screw (a cylinder with an external thread). Nut fit, used to securely connect two parts with through holes. According to the different pla......

Screws are commonly known as screws, and those with external threads can be called screws.

The so-called wood screw, that is, a wood screw, is similar to a machine screw, but the thread on the screw rod is a special wood screw rib, which can be directly screwed into a wooden component, used to connect a metal or non-metallic part with a through hole to the screw. A wooden element is faste......