•Material: carbon steel, stainless steel, brass. • Material: Q235, SS304 • Diameter: 0.098" – 0.236". • Length: 1-3/4" – 6". • Head: flat round head, oval head. • Shank type: twist( screw) • Point: diamond. • Surface treatment: zinc coated and bright polished. • Package • 1 kg/plastic bag, 25 bags/ carton. • 25 kg/carton in bulk. • As customers' requirement.• Easy to drive. • strong gripping force, resistant to withdrawal. • corrosion resistant, durability. • Complete sizes are available.