A stud is a threaded rod is a relatively long rod that is threaded on both ends the thread may extend along the complete length of the rod. They are designed to be used under tension. Threaded rods in bar stock form are often called allthread. Metal fabrication weldment is the creation of metal structures by cutting, bending and assembling processes. It is a valueadded process involving the creation of machines, parts, and structures from various raw materials. Features. 0.2520 x 1 in. Weld Stud. Made with high quality materialSpecifications. Size 0.2520 x 1 in.