A weld nut, also known as a weldable nut or projection weld nut, is a type of fastener designed to be welded onto a metal workpiece. These nuts have a threaded hole surrounded by a circular flange with small projections or spots. The flange provides a larger surface area for welding, while the projections help to ensure proper alignment and provide additional strength during the welding process.
Weld nuts are often used in applications where a strong and permanent threaded connection is required, particularly in metal fabrication and construction. They are commonly welded onto sheet metal, plates, or structural components to create a threaded attachment point for bolts, screws, or studs. Weld nuts are available in various shapes, sizes, and materials to accommodate different welding techniques and load requirements. Proper welding procedures and techniques are crucial to ensure the integrity and strength of the weld joint.