Introducing the Miter T Locking Bolts by POWERTEC. This t slot hardware is designed with a larger head that fits t-slotted miter slots. Similar to our T-Bolts, but these miter tops possess an enlarged oval shaped head that gives you greater project flexibility with many of your flat surface assemblies without disrupting your workflow. The threaded portion is ¼ in.-20 and 1-in. long. The 48 in. Aluminum T-Track with Miter Bar Combo A cost effective woodworking duo that works with most standard 3/4 in. x 3/8 in. miter gauges (with or without a t-slot plate). The versatile track set allows you to utilize your existing standard miter gauge in a wider array of benchtop operations. It can work with an assortment of router table, drill press tables, table saw extensions and custom bad saw tables. Using a carbide tipped blade, the miter t-track can be cut for customized functionality. Unlike other more expensive versions, POWERTEC track, and bar set features a center (middle) line guide track - perfect for drilling, project versatility and alignment. The T-Style 1/4 in.-20 Thru Hole Knobs These t-shape nuts are designed to provide you with a multi-functional toolless fastener knob that gives you optimal control with a secure, tight grip for your applications. The black knob is made with high quality, durable polymer plastic and flaunts an ergonomic design. The threaded 1/4 in.-20 knob thru hole features a plated steel construction that won't crack or strip due to over-tightening. Material: Multi Pack.