T-slot extrusion allows you to build quickly and adjust infinitely. The "T-slots" capture hardware so that you can easily fasten components to your extrusion’s sides using screws.
goBILDA® goRAIL extends the possibilities of T-slot extrusion! It boasts threaded ends for the effortless attachment of U-Channel and brackets, and rocks a 14mm center bore (as well as a 32mm OD) that allows for the easy and on-pattern integration of bearings into your project. Additionally, the chamfered edges provide races for V-wheels to run on in linear motion assemblies.