... SpecificationsScrew and fastener 1.Provide different fastener products 2.Standard NO.:DIN,JIS,ANSI 3.Material:Carbon steel. ... nut(DIN1587,JIS1183,UNI5721), Long nut(DIN6334), Spring nut, T nut(DIN1624), Wing nut(DIN315), Insert nut, Attck inside ... boltDIN933,DIN931), Hex flange nut(DIN6921), Wing bolt(DIN316). Carriage bolt(DIN603), Allen bolt(DIN912), T bolt.3.Screws: Drywall screw, Wood screw. ...