1)Standard: ANSI, DIN, and BS 2)Property class: 4.8 and 8.8 ... M16 M18,M20,M22,M24,M27,M30,M33,M36,M39,M42,M45,M48,52materialmild steel,soft steel,low steel,carbon steel ... Surface treatmentZinc Plated, Plain, Black ,HDGstandardANSI, DIN, and BSGrade 4.8 and 8.8Delivery timeWithin 15days to ...