Rust resistant and strength enough to apply in many kinds of heavy duty materials including sheet metal, steel, aluminum, plastic, fiberglass etc.. Perfect for automotive, furniture, decoration and other electrical and industrial products.. M3 M4 M5 M6 M8 M10 M12 304 Stainless Steel / Steel With Zinc / Aluminum Flat Head Riveted Nuts Insert Rivet Nut, 5-20Pcs.
