Features 【Premium Material】The T track is made of aluminum alloy, not easy to scratch or bend, corrosion resistant and durable. 【Useful Tool】This is for a set of clamping clamps to use with T-slot rails.Very diverse! Also great for holding accessories! 【High Practicality】Apply clamping pressure anywhere along the flush mount T-slot T-guide. It slides onto the T-rail and secures quickly by turning the nut of the manual knob. 【Multifunction】Both T-bolt and threaded rod have 8mm thread. For the production of clamping, positioning and clamping devices. 【Wide Application】These clamps are useful in many woodworking and metallurgy applications for fastening, placing and fixing workpieces. Features: T-screw thread and threaded rod size: M8. It is used in many woodworking and metallurgy. It is used for fastening parts, positioning and fixing. T-track slides, secures quickly with the turn of the hand nut Specifications: Main Material: Metal Main Color: Silver Thread Size: M8 Package Included: 1x Whole Clamps Assembly (Threaded Rod, T Screw, Nut Knob, Side Block, Washing Machine, Obstruction Card) O 1x T Screw and Nut Plastic Knob Only Package List