Description: A T-nut is a type of nut used to fasten a wood, particle or composite materials workpiece, leaving a flush surface. It has a long, thin body and a flange at one end, resembling a T in profile. The flanges of T-nuts have prongs that dig into a wooden work piece as the bolt is tightened from the opposite side of the piece, providing better retention. Features: These four-pronged T nuts are made from carbon steel and plated with zinc for rust and corrosion protection. These nuts are used to provide a strong, reliable and easy to fit threaded socket in wood and chipboard. These four prongs will stop the T nut from turning when they are inserted and tightened into wood pieces. There are 5 different sizes of T nuts that you can choose as need for different purposes and projects. Convenient to use, simply tap these nuts into a suitably sized hole and the prongs will hold them in position. Specifications: Material: Zinc plated carbon steel Color: Silver Size and Quantity(Optional): M3 50pcs M4 50pcs M5 50pcs M6 50pcs M8 30pcs Package Includes: 1 set x T Nuts