... . Standard and Non-standard Fasteners 3. Customer First,Service FiRST New Designer Self Tapping Screw • Material: Carbon steel & stainless steel• Head ... finish , Black Oxide • Plating:BlackOxide,Zinc,Chrome,Galvanized,Nickle,Dacromet, Delta-Tone, Geomet,Ruspert• Packing: AS you required• Sample lead time ...