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.- There are total 20pcs nut that you can use for many projects.- They are simple to use and convenient to connect aluminum profiles to other parts.- These hammer head nut are mainly used for type-40 aluminum extrusion profiles.Specifications:Material: Carbon steelSurface Finishing: Zinc platingType: Type-40Model: M8Quantity: 20pcsWeight: 243g~300g(approx.)Package Includes:20 x Nuts About this item [Hammer Head Nuts]: Type: Sliding nut, suitable for Aluminum Extrusion Profile 4040 series Slot Groove 8mm [Premium Material]: Made from high quality carbon steel, nickel-plated surface with good rust and oxidation resistance, these nuts have high hardness, sturdy and durable, for a long time use [Wide Application]: The M8 T-Nut perfectly applies to building industrial aluminum frame structures, 3D printers, CNC Routers, CNC laser cutters, Robotics Projects, ect [M8 T-Nut Sliding Nut]: There are total 20pcs nut that you can use for many projects; These hammer head nut are mainly used for type-40 aluminum extrusion profiles [How to Use]: T-nut is placed directly into the profile groove. During the installation process, it can be automatically positioned and locked; It is a good helper for installing profile parts such as corner pieces [Premium Material] [Wide Application] [M8 T-Nut Sliding Nut] [How to Use]