Features:* 100% brand new and high quality.* 100mm threaded rod, M8 slider and thumb nut (through-hole) for t-slot/t-track woodworking.* Places clamping pressure anywhere along the t-track with flush groove.* Slides into the t-track and quickly secures with a hand wheel nut.* Very versatile! Also ideal for attaching jigs and fixtures! Specifications:* Screw Material: Carbon Steel * Finish: Zinc Plated * Color: Silver + Black * Thread: M8* Threaded Rod Length: 100mm * Thumb Nut: 46mm (Approx.) Package Content:4 * Plastic Knob Nut4 * Threaded Rod4 * Slider Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.