are produced with weld lugs or protrusions to enable their use with standard projection welding equipment.
The second generation-which emerged in the 1920s, became more widely used after 1945, and is still here today-has involved engineered fasteners (self-clinching nuts, cage nuts, blind rivet nuts, weld nuts
, threaded insert) preparing the metal sheet support by setting a threaded component, but still using nutsand bolts separately.
Riveted and weld nuts
require drilling in multiple stages, which produces chips and debris.
These inserts are practical alternatives to tapped holes, weld nuts
, rivets, and self-drilling or tapping screws, and can be installed permanently anywhere using a hand-held portable tool.
These aluminum, brass, steel and stainless-steel threaded inserts can serve as practical alternatives to tapped holes, weld nuts
, rivets and self-drilling or tapping screws.