... standard ite metal self clinching nut for PC board in hardware manufacturerA: SpecificationMaterial:stainless steel,carbon steel,aluminumStandard:PEM, ... standard Material:: Carbon steel,stainless steel,aluminum Finish: zinc,black,chrome,nickel Quality: High-quality raw material, strict ... 's major product line includes chipboard screw, wood screw,drywall screw, machine screw, TEK screw, and deck screw. ...