The 4-inch Mild Steel Nail is an industrial-grade nail with a galvanized surface treatment. Made of high-quality mild steel, this nail is designed for industrial usage. The circular head makes it easy to drive into various materials, providing a secure and stable hold. The silver color adds a sleek and professional look to the finished product. Whether for construction, woodworking, or other industrial applications, this 4-inch nail is a reliable and durable choice.