Model Number: Health Gear7zdtewyb8k-1 Colour: M8 Product Dimensions: 2 x 3 x 1 cm; 230 Grams Material: Carbon Steel Item Weight: 230 g Features: - Made from high quality carbon steel, these nuts have high hardness and a long service life - Surface is plated with zinc for good rust resistance and better performance - Includes 20 pcs nuts for use in various projects - Simple to use and convenient for connecting aluminum profiles to other parts - Designed for use with type-40 aluminum extrusion profiles Specifications: Material: Carbon steel Surface Finishing: Zinc plating Type: Type-40 Model: M8 Quantity: 20 pcs Weight: 243g–300g (approx.) Package Includes: 20 x Nuts About this item: - Hammer Head Nuts: Sliding nut type, compatible with 8mm slot groove of 4040 series aluminum extrusion profiles - Premium Material: Constructed from high quality carbon steel with nickel-plated surface for enhanced rust and oxidation resistance; provides high hardness, strength, and durability - Wide Application: M8 T-nut is suitable for industrial aluminum frame structures, 3D printers, CNC routers, laser cutters, robotics projects, and similar applications - M8 T-Nut Sliding Nut: Set includes 20 nuts for multiple project needs; specifically designed for type-40 aluminum extrusion profiles - How to Use: T-nut slides directly into the profile groove and automatically positions and locks during installation; ideal for attaching profile accessories such as corner brackets