Hexagon bolt 1.This is a M1.4-M20-9 style bolt 2.Finish: anti-rust treatment 3.It's work well, 4.welcome the OEM orders! Hexagon bolt1.Applications: mobile phones, portable computers, a variety of plastic frames, communications, micro-motor, computer, electronic and electrical appliances, auto parts, etc.2.Material: 1010 carbon steel, 1018 carbon steel, 1022 carbon steel, 302 stainless steel, 304 ...