You need to enable Javascript in your browser to use most features on our website.
Nuts Material of screws: mild steel(1010, 1015, 1020, 1025), middle carbon steel(1030, 1035), high carbon steel (1040, 1045, 1050, 1055), stainless steel(202, 302, 304), alloy steel, brass Size: diameter: m4~m64