Stud welding
Videos
Stud welding is a technique similar to flash welding where a fastener or specially formed nut is welded onto another metal part, typically a base metal or substrate. The fastener can take different fo
Stud-welded anchors on a bridge girder
Nut (hardware)
Videos
A nut is a type of fastener with a threaded hole. Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination o
An M4 nut threaded onto an Allen key socket head screw
Nuts come in many sizes. This one is part of the Sydney Harbour Bridge.
Left to right: Wing, hex, hex flange, and slab weld nuts.
Left to right: Slotted, square (upper), T-nut (lower), cap (or acorn), nylon locking (top and side views), and castellated nuts.