Hexagon cylindrical head bolt, also known as hexagon bolt, is a hexagon cylindrical head and screw composed of fasteners.
Hexagon bolt standard DIN, ANSI, BS, GB, etc., the material is stainless steel or carbon steel. Carbon steel bolts are divided into 4.8 class bolts, 8.8 class bolts, 10.9 class bolts, 12.9 class bolts;
Stainless steel bolts are divided into SUS201 bolts, SUS304 bolts, SUS316 bolts according to material.
The surface treatment of hex bolts is generally divided into natural color, galvanized, boiled black, nickel plating, chrome plating, etc.