High-quality materials: T-slot nuts are made of high-quality alloy materials, surface, durability, which tensile strength and good corrosion resistance in many environments. Practical sliding nut: M8 T-rail nut can be pushed into the T-rail, other parts can be connected and connected to one another with T-bolts. Perfect for working, holding, positioning and fastening. Installation and : They are easy to and convenient to aluminum profiles. T-Nuts allow users to add jigs to jigs without removing existing jigs. Application: Suitable for door handles, mechanical engineering, wood and metal processing. For building jigs and jigs for your saws, workbench, drill press and various other machines. Standard size: The size of the T- nut block is 3 x 2.3 x 0.8cm, and the is M8. Comes with 6 pieces M8 T- nut, sufficient quantities can meet your different needs. Colour: silver gray Material: aluminum alloy Package Contents: 6 * T- nut block Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.