Check the listing for details. POWERTEC T-Track 48" Heavy Duty T Slot Track Mounting for 1/4??-20 Hex Bolt, 2PK. Color: Silver, Condition: New. Listed at 26.99 USD. The 48" Aluminum T-track by POWERTEC. Includes: (2) aluminum t-track 48 inches longFittings: accepts specialized T-slot Track mounting for standard 1/4”-20 hex-boltsDimensions: 3/4” width by 1/2” depth x 48” length | 16, 3/16” holes drilled 1-1/2” from each end then every 3” for #8 wood screws (not included)Design: features a smooth, straight profile with pre-drilled mounting holes along the base for easy installation and is constructed out of extruded anodized aluminum for optimal performance, durability and t-track efficiency. An extruded line, in the bottom of the track, provides for easy and precise alignment When mounting.Versatile: Perfect addition to any workbench machine and great for positioning jigs, stops, and hold down Clamps on table saws INCLUDES: (2) Aluminum t-track 48 inches longThis heavy duty T-Track is designed to work with an assortment of general purpose fixture and jig applications. In addition to a multitude of unique enhancements, it features an extruded anodized aluminum construction, delivering a solid and durable design.An extruded line, in the bottom of the track, provides for easy and precise alignment when mounting. Unlike other brands, it s delivered to you unblemished, with a smooth and straight profile, and without the structural flaws that may affect your project goals. Whether you re utilizing metal or woodworking machines, this t-track gives you consistently reliable and highly accurate results.PLEASE NOTE:This t-track is exclusively designed to capture ONLY the following type & size bolts:Any Standard 1/4”20 Hex Bolt POWERTEC is a professional manufacturer of high quality wood work accessories, sanding discs and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov