A Square Weld Nut is a type of nut with a square-shaped body and a flange designed for welding to a surface. It typically features a pre-welded design, allowing for easy attachment to metal parts without the need for threading or additional fasteners. The square shape ensures that the nut remains securely positioned during the welding process, while the flange provides a larger surface area for a stronger bond. ... Square weld nuts are commonly used in automotive, machinery, and metalworking applications where a nut needs to be permanently attached to a workpiece. Made from materials like steel, stainless steel, or alloy metals, they offer durability and corrosion resistance. They are ideal for applications where fast assembly and secure, long-lasting connections are needed.