[Practical Woodworking Tools] T-Track clamps are ideal for building jigs and templates for radial arm saws, workbenches, drill presses, and a variety of other machines for a variety of woodworking and metalworking applications. You can mount it anywhere on the T-track with clamping pressure. [High-quality and durable materials] The sliding T-nuts are made of high-hardness aluminum alloy, the T-slot screw is made of 304 stainless steel, and the hand knob is made of bakelite + copper. These durable materials have excellent rust and corrosion resistance, high hardness, are not easily deformed, and can be used for a long time. [M8 T-Nut Kit] The clamping screws are M8, the specification of the T-bolts is M8 x 100mm, and the black knob is M8 x 32mm. The set is used for slotted fixtures for woodworking tools, which can be used to clamp, position, and fix workpieces. [Easy to Use] Simple installation steps without tools. You only need a T-bolt and a nut along the built-in T-track, and quickly tighten the T-nut by turning the hand knob to complete the installation. These are the most commonly used parts for connecting aluminum profiles. [Wide Range of Applications] The set includes 6 T-slot sliding nuts, 6 T-slot sliding screws, and 6 hand knobs, enough to meet your usage and replacement needs. With the T-slot nut set, the clamps can be fixed directly onto the T-slot without removing the existing clamps, making it easier to connect aluminum profiles. Suitable for door handles, mechanical industry Star-shaped hand knobs. The thumb screws have an 8 mm thread. For building jigs and fixtures for your radial arm saws, workbenches, drill presses, and various other machines. T-track sliding nuts The thumb screws are made of high-quality carbon steel, strong and corrosion-resistant. It can be inserted directly into the aluminum slot of any fixing point. Used for T-slot aluminum profiles to connect other parts. M8 plastic thumb screws The thumb screws are made of high-quality plastic for durability and long service life. Internal thread diameter: M8; Head diameter: 32 mm; Total height: 22 mm. Widely used in mechanical equipment, instruments, food, and industrial equipment. Tightening Screws T-bolts are made of durable stainless steel, which is not easy to corrode and has high hardness. Widely used in aluminum alloy, rack mounting, and locking, used with a T-nut, the fastening effect is good. For clamping, positioning, and fixing workpieces. Specification: Brand: KLYNGTSK Material: Aluminum alloy + stainless steel + bakelite + copper Size: M8 Quantity: 18 pieces Package Contents: 6 x Tightening Screws 6 x Plastic Hand Knobs 6 x T-bolts