Check the listing for details. M8 T-nuts, 10pcs Carbon Steel Hex Socket Head Insert Nut 12mm Height, Black. Condition: New. Listed at 9.77 USD. Description:1. Material: These T-nuts are made of carbon steel with a black oxide surface finish, which is rust- and corrosion-resistant, superior to ordinary steel for greater strength and durability.2. Features: Weldable, removable, through the inner thread, and the same specifications of the screw thread can be connected. It is a hardware part that closely connects mechanical equipment and furniture components.3. Usage: According to the outside diameter of the nut rod, first make a pre-hole slightly smaller than the outside diameter of the nut, put the nut, and connect the nut with a mechanical screw to ensure that the nut is flush with the surface.4. Application: Tee nuts are widely used in metal or wood furniture, electronic and electrical chassis, and sheet metal welding.