... steel SUS 316, SUS304, SUS201 and SUS200, copper and etc.Hex bolt Material: Iron, stainless steel SUS 316, SUS304 ... , SUS201 and SUS200, copper and etc. Bolt Standard: ... is available, such as Zinc plate, plain finish, copper plate, nickel plate Grade: 4.8, 6.8, ... =10-600mm, D: M3-22 Head type: Hex Bolt Packing: Carton and pallet or according to ...