Long Nut Description Size range : 1/4″,5/16″,3/8″,1/2″ , M6 ,M8 ,M10,M12Material : MILD STEELFinish : ZINC PLATE / HOT-DIP GALVANIZEDService : Used to fit bolts, studs or machine screws for fastening twoparts together to make them one piece. Whatsapp Gallery