... 6.8,8.8,9.8....... Bolt M10,Iron Bolt,Steel Bolts.1.What’s the ... demand .SizeThe Diameter :Generally,it is M2-M12 in our fasteners.The length :ordinary,It ... head...Socket typesPhillip type,Pozi type,Eleven type,hexagonal type,Torx type,trangle type,slotted point type,square type,Combined type...FinishZinc plated, ... more than 20 years experiences in screw,bolt,nut,washer,rivet, stud, pin,wrench and so ...