allet/ CustomizedPort? Shanghai/ HangzhouLead Time?:30 days after receiving the deposit???SizeM4/M5, according to customer requirementsGrade4.8,5.6,8.8,10.9,12.9,A2-70,A2-80StandardISO, GB, BS, DIN, ANSI,?Non-standardAvailable material1.Stainless steel: 201,202,303,304,316???2.Carbon steel:?C1006,C1010,C1018,C1022,C1035K,C10453. Copper:?H62,H65,H684.?Aluminum: 5056, 6061, 6062, 70755.?According to customer demandSurface treatmentZinc-plated, Nickel-plated, Dacromet, Black oxide, cus