... ,4,6,8,10,A2-70,A4-80. m12 hexagon bolt din931/din933Product surface treatment: Zinc Clear, Zinc Yellow, Zinc Black ... FastenerApplication:BuildingPackaging Details:Small box, carton, pallet, nylon bag, for self drilling screwProduct Description1. Grade:10.9S2. Size: M16,M20,M22 ...