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 T-slot structural framing 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. A heavy-duty T-slot nut with a M12 bolt is rated to support 10000 N (about 1 imperial ton at rest). The item system is very similar to the "channel-and-groove design" used in some toys.