... 8,8.8,9.8....... WASHER,STAINLESS STEEL WASHER,DIN 125 L PLAIN WASHER. A good non-standard fastenerS ... head,Bugle head,Oval head,Hex flange head,Round head,Ball head,Button head...Socket typesPhillip ... type,Torx type,trangle type,slotted point type,square type,Combined type...FinishZinc plated,Nickel plated, ... 4.Quality equipments and QA staffs random check or total check products in each procedure,Items ...