1. Various high precision hex sockets. 2. Made of high quality zinc alloy, durable and rustproof. 3. Convenient installation, just drill a suitable size hole and install it with a hexagon wrench. The tapered external thread is not easy to fall off due to vibration. It is suitable for soft woods such as wood pine, plywood, fiberboard, etc. It has a good effect on furniture combination. 5. Package contents: 7 sizes: M4 x 10, M5 x 10, M6 x 10, M6 x 15, M8 x 15, M8 x 20, M10 x 25, a total of 120. Product Description This series of hex sockets contains 7 types of different nuts, which are stored separately in a Case. You will quickly find the right size. The insert nut provides a threaded socket for a piece of wood. Similar to wall anchors. These nuts are inserted into pre-drilled holes with screws, in this case The outer protrusion bites into the wood to prevent the nut from backing out. Very suitable for furniture. Material: zinc alloy. Dimensions: M4x10, M5x10, M6x10, M6x15, M8x15, M8x20, M10x25. Quantity: 120 pieces in total. Package includes: 30 x M4 x 10 hex screws. 30 x M5 x 10 hex screws. 20 x M6 x 10 hex screws. 15 x M6 x hex screws 15. 10 M8 x 15 hex screws. 10 M8 x 20 hex screws. Five M10 x 25 hex screws.