This Lead Screw nut is shaped like a skeleton key in order to index inside of Open X-Rail to create a compact linear actuator! The threaded barrel allows you to install the Actuator Piston Tube (12" Length, 3/8" OD) on the leading end.
The protrusion is just beyond flush with the side of the Open X-Rail to limit rotational motion while also allowing a convenient spot to fasten a trigger or sensor onto to assist in setting travel limits.
As the lead screw rotates, it will cause linear motion of the tube, in and out of the Open X-Rail.
