•Material: carbon steel, stainless steel. • Material model: Q195, Q235, 304, 316, 316L. • Diameter: 4–20 gauge. • Length: 1/2" – 7". • Head type: flat head. • Shank type: ring shank. • Point: sharp point. • Surface treatment: bright, electro galvanized, vinyl coated, polished. • Standard: ASTM F1667, ASTM A153. • Package: 11 lbs per box, 2 lbs per box or bag, 1 lb per bag, 55 lbs per carton and as your request.• Annular ring shank threads for extra grip. • High resistant to withdrawal. • Sharp point for easier driving. • Ring patterns can vary according to customers' demands. • Great staying power and resistant to bending. • Complete gauges, length and sizes are available.