A T-slot nut is used with a threaded clamp to position and secure pieces being worked on in a workshop. The T-slot nut slides along a T-slot track, which is set in workbench or table for a router, drill press, or bandsaw. T-slot nuts are also used with extruded aluminum framing, such as 80/20, to build a variety of industrial structures and machines.
A T-slot bolt is generally stronger than a T-slot nut and hex head cap screw.
Profile 40x40 (40mm by 40mm, with 8 mm grooves) extruded aluminum profiles and the T-slot nuts to fit into them were developed for use in mechanical engineering in 1980 by item Industrietechnik.
It is very similar to the "channel-and-groove design" used in some toys.
- Erik Oberg et al. "T-Bolts, slots, nuts and tongues." (2008). Machinery's Handbook, 28th ed. New York: Industrial Press. p. 1632–1634.
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