Application: Suitable for pine softwood, plywood, fiberboard, etc., it has a good effect in furniture combination. Durable material: Made of high quality zinc alloy for durability and rust protection. High Precision: 230pcs 11 Size High Precision Hex Flange Threaded Insert Nut Assortment Kit. Easy to Install: Just drill the appropriate size hole and install with a hex key, it makes the tapered outer threads difficult to pull out due to vibration. Six Nut Assortment Kit Socket Head, Zinc Plated Carbon Steel Hex Nuts, M4/M5/M6/M8/M10 Hex Socket Inserts for Zinc Alloy Furniture, Threaded Inserts Kit for Wood Furniture Features: - Contains 11 different types of dice which are separated and stored in case order, you can quickly find the appropriate size. -An insert nut provides a threaded socket for a piece of wood, similar to a wall anchor. -These insert nuts are inserted into a pre-drilled hole by screwing, in this case the external protrusions bite into the wood, preventing the nut from turning or pulling out. -Ideal for furniture installation and woodworking. Specification ions: Material: zinc alloy Quantity: 230 pieces in total Package Content: 30 x M4*8 Hex Socket Screw Hex Socket Screw 60 x M4 * 10 Socket 45 x M5 * 10 Socket Cap Screw 18 x Socket Cap Screw M6*8 32 x hexagon socket screws M6*10 13 x M6*13 hexagon socket screw 12 x M6*15 hexagon socket screw 10 hexagon socket screw M8*15 5 hexagon socket screws M8*20 3 hexagon socket screws M10*15 2 hexagon socket screws M10*25