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1. Thread:M, UNC, UNF

2. Grade: 4.8 6.8 8.8 10.9 12.9, SAE J429 Gr2, 5, 8

3. Surface treatment: Zinc Clear, Zinc Yellow, Zinc Black, Tin-plating, Nickel-plating, Dacromet,Mechanical Galvanizing, Hot-dip Galvanizing, Dye Blackness, Copper Yellow, etc.

4. Packing: Carton, Box, Bag, Pallet or according to your requirement.