Description: Made of material, and practical to use Metric thread, corrosion-resistant environmental protection. Threaded inserts for wood. More use and installation: pre-drill the suitable hole, screw the threaded inserts with screws. Fastener, hexagonal connector, drive, threaded insert, nuts, for wooden furniture assortment. Applications: these furniture screws are suitable for hardwood/solid wood furniture, for furniture combinations. Features of insert type nut: these threaded inserts are inserted into a pre-drilled hole by screwing, in this case, the external lugs bite into the wood, preventing the nut from turning or pulling out. Specification:Material: Zinc AlloyColor: Photo Color Size: M4/M5/M6/M8Total Quantity: 165pcsPackage Contents:40*Hex Socket (M4*8)40*Hex Socket (M4*10)30*Hex Socket (M5*10)15*Hex Socket (M6*10)20*Hex Socket (M6*15)20*Hex Socket (M8*20)Only the above package content, other products are not included. Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.