Non Magnetic Stainless Steel Bolt And Nut Set M12X100Mm Length,Fully Threaded With 2 Plain Washers Of Thickness Not Less Than 1.5Mm,One Spring Washer Of Size 2.5Mm, Chuck Nut And Nut. Complete Set All Items Should Be Stainless Steel Of Aisi 302 Grade A2 Property Class Conforming To Is:1 367. ]