Introducing the Universal Hold Down Clamps by POWERTEC. This hold down clamp set provides you with a heavy duty and reliable solution to keeping your t-track/ t-slot work pieces in place. Each clamp is designed to fit firmly in your universal t-track/ slot assembly, providing you with high-tension clamping action. Premium Build + Innovative Design Featuring our unique lever shaped profile, these woodworking accessories deliver exceptional hold-down clamping action. They also flaunt an impressive clamping capacity for a wide assortment of task, while providing the user with optimal work piece clearance. The POWERTEC Hold Down Clamps are constructed out of heavy duty anodized aluminum, built for long-term usage without the worry of corrosion or wear and tear. We?ve added ergonomically designed 5 star knobs to give you full-range control. This makes adjusting, tightening and securing your material a breeze. To protect your work piece, these clamps are highlighted with non-marring rubber clamping pads. Whether you?re a professional or DIY enthusiast, these beefy clamps offer hassle free productivity and streamlined workflow. They?re easy to use, and even easier to love. Hold Down Clamp Specs Length: 3-5/8-Inch Width: 3/4-Inch Body: Anodized Aluminum Pads: Non-Marring Rubber Knob Type: 5 Star T-Bolt: 3-1/2? L with 5/16?-18 Thread Package Includes (TWO) hold down t-track clamps (t-bolts, washers, caps, knobs included) POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, 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.