Introducing the MATCHFIT Dovetail Nut Track Hardware (4-Pack)Create jigs and shop fixtures with the incredibly versatile MATCHFIT Dovetail hardware. With just a standard ½” 14-degree Dovetail router bit, you can route your own tracks, eliminating the need for expensive aluminum T-Track. This one-of-a-kind hardware moves through the dovetail tracks below the surface, allowing you to create a variety of jigs that move freely, and tighten down anywhere you can route a Groove. Create your own fences, stops, hold-downs, and assembly fixtures in a snap partible with the MATCHFIT Dovetail router bit, available in ½”, 8mm, and 12mm shanks. The MATCHFIT female track hardware is also compatible with any 10-32 screws of any length. Whats in the Package: (4) 10-32 Track Nut(4) 10-32 x 0. 75" Pan head Screw(4) #10 Flat Washers