... 8,9.8,10.9.... Stainless Steel Insert Nut ,Stainless Steel Barrel Nut ,Stainless Steel Blind Nut. 1.What’s the ... such as 1022,1018,1010,1008,1015...Medium carbon steel are 35k,45#,10B21,1035,CH38F,1039,40ACR...Alloy ... ,Button head...Socket typePhillip type,Pozi type,Eleven type,hexagonal type,Torx type,trangle type,slotted point type,square type,Combined type...FinishZinc plated,Nickel plated, ...