• Material: hardened steel, stainless steel, brass. • Material model: Q195, Q215, Q235, SS304, SS316. • Screw No.: #1 – #24. • Head: Phillips flat, frearson flat, slotted flat, slotted oval, Phillips round, slotted round and square flat. • Head diameter: 0.119" – 0.650". • Shank type: threaded. • Shank diameter: 0.060" – 0.372". • Length: 5/8"–5". • Point: diamond • Surface treatment: Bright, Electro galvanized, Hot dipped galvanized,Gold yellow Zinc coated. • Standard: ASME B18.6.1. • Package: 25 kg/carton, then on pallet, or as customer’s need.• Outstanding holding power & corrosion resistance. • Last longer in ACQ treated wood • Minimal splitting during screw down. • High resistant to withdrawal & bending. • No need switch drives, save time. • Various head types and sizes for different needs.• Solid wood. • Plywood. • Other resilient material.