Size:M3-M64 ,1/8-3' Standard:GB,DIN,ISO finish code: ZIPL, NIPL Material:carbon steel.SS standard:GB,DIN,BS, ... ASTM,ISO,ANSI(IFI),JIS, and non-standard parts size:M3 ... , aluminium bronze, nickel bronze, phosphor bronze, manganese bronze,etc.finish code: Zine-Plated, Ni-Plated, Tin-Plated, gold plated, silvering, chrome ...