The T-Track Jig Hardware Kit by POWERTEC.The POWERTEC 71170 T-Track jig hardware kit, 5/16”-18, 17-pc, provides a wide variety of the most popularly used components needed to build, customize and repair your T-Track jigs and fixtures. No need to go to the store in the middle of a project because you’ll have everything you desire – A handy T-Track, a variety of sized t-bolts, Star knobs and t-knobs – right at your fingertips. For use in your t-track jigs/fixtures.Comprehensive Jig set right at your fingertips.Hardware is precision machined of zinc-plated Hardened steel; knobs constructed of premium Hardened plastic.Compatible hold-down Clamps can also be ordered to further enhance this stellar set.Contains one aluminum universal t-track, 48″ Long x 3/4″ Wide x 3/8″ Thick; two 1” t-bolts, two 1-1/2″ T-bolts, two 2-1/2” T-bolts, two 3-1/2” t-bolts, four 5-star knobs, four 2″ T-knobs. Well-made and DurableThese premium accessories streamline your workflow and enhance woodworker satisfaction. This comprehensive set is comprised of the following premium components: one universal T-Track, 48-Inches in length, and two 1” t-bolts, two 1-1/2″ T-bolts, two 2-1/2” T-bolts, two 3-1/2” t-bolts, four 5-Star knobs, four 2″ T-knobs. POWERTEC is a professional manufacturer of high quality woodworking machines, wood work accessories, and a wide assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the best innovations, technologies, and product development to the industry.