Description: These T-nut are used to fasten a wood, particle or composite materials workpiece, leaving a flush surface. 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: Size(Inner Dia.xHeight): M3x6, M4x8, M5x8, M6x9, M8x10(Optional) Material: Carbon steel Surface Finishing: Zinc plating Carbon Steel Grade: 4.8 Nut Grade: A Color: Silver Quantity: 100pcs Package Includes: 100 x T Nuts Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.