Description:100% brand new and high qualityMade of high quality material, durable and practical to useMetric thread,corrosion-resistant environmental protection.threaded inserts for wood.More Usage and Install: pre-drill a proper hole, screw-in with Screws Threaded Inserts. Fastener Connector Hex Socket Drive Threaded Insert Nuts For Wood Furniture Assortment.Applications: These furniture screws are suitable for furniture hardwood/ solid wood, for furniture combinations.Features of insert nut: These threaded inserts are inserted into a pre-drilled hole by screwing in, in that case the external protrusions bite into the wood, preventing the nut from either turning or pulling out.Specification:Material:Zinc alloyColour:Photo ColorSize: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 real color 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.