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A weld nut is a special type of
3151
;Slab base nuts These are very similar to the round base nuts, but with an obround, or slab shaped, base. These are used in channels, tubes, or other tight quarters. ;Tab base nuts Tab base nuts are designed for spot welding on flat workpieces. They have a locating
3152
;Retainer weld nuts Retainer weld nuts, also known as bridge weld nuts, have a floating nut retained inside a retainer to compensate for inconsistencies. The retainer is welded to the work piece while the nut is allowed to float. ;Tube end nuts Tube end nuts are sized to fit into the end of standard sized tubing, thus creating a threaded tube from standard stock. ;Twin Piloted Nuts Dual hole or twin piloted nuts are designed for use where there is a need for tapped holes close together. Four Projection Weld Nuts Four projections designed to fuse simultaneously so each projection flows and seats properly. Single Tab Weld Nuts
Single button projection weld nut for use on heavier gage materials.
A weld nut is a special type of nut
Nut often refers to:
* Nut (fruit), fruit composed of a hard shell and a seed, or a collective noun for dry and edible fruits or seeds
* Nut (hardware), fastener used with a bolt
Nut or Nuts may also refer to:
Arts, entertainment, and media Co ...
specifically designed to be welded to another object ( spot welding). There are various types for different applications.
Types
;Round base nuts These nuts have a long threaded cylinder with a large circular base to make welding easy. They also sometimes have projections (known as weld nibs or bosses) to keep the nut from warping while welding with a high current.McMaster-Carr, p3151
;Slab base nuts These are very similar to the round base nuts, but with an obround, or slab shaped, base. These are used in channels, tubes, or other tight quarters. ;Tab base nuts Tab base nuts are designed for spot welding on flat workpieces. They have a locating
boss
Boss may refer to:
Occupations
* Supervisor, often referred to as boss
* Air boss, more formally, air officer, the person in charge of aircraft operations on an aircraft carrier
* Crime boss, the head of a criminal organization
* Fire boss, a ...
around the threads to locate it in a pilot hole.
;Hex & square nuts
These nuts are very similar to standard square or hex nuts, but have a locating boss and welding projections. The bosses also keep weld spatter out of the threads.McMaster-Carr, p3152
;Retainer weld nuts Retainer weld nuts, also known as bridge weld nuts, have a floating nut retained inside a retainer to compensate for inconsistencies. The retainer is welded to the work piece while the nut is allowed to float. ;Tube end nuts Tube end nuts are sized to fit into the end of standard sized tubing, thus creating a threaded tube from standard stock. ;Twin Piloted Nuts Dual hole or twin piloted nuts are designed for use where there is a need for tapped holes close together. Four Projection Weld Nuts Four projections designed to fuse simultaneously so each projection flows and seats properly. Single Tab Weld Nuts
Single button projection weld nut for use on heavier gage materials.
Material
The vast majority of weld nuts are manufactured inlow carbon steel
Carbon steel is a steel with carbon content from about 0.05 up to 2.1 percent by weight. The definition of carbon steel from the American Iron and Steel Institute (AISI) states:
* no minimum content is specified or required for chromium, coba ...
or stainless steel
Stainless steel is an alloy of iron that is resistant to rusting and corrosion. It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. Stainless steel's corros ...
. This is due to the methods currently available to spot weld or projection weld the hardware to joining material. Aftermarket products such as zinc plating are sometimes used to coat low carbon weld nuts giving it the rust resistant properties of stainless steel at a substantial cost saving.
References
Notes
Bibliography
*. *. {{Nuts (hardware) Nuts (hardware)