50PCS M6 M8 Nut Inserts Zinc Alloy Insert Hexagonal Thread Nuts External Thread for Wood Furniture - (M8*20mm)Material: zinc，M8*20mm Size: M8，Head Style: PlugFeatures: Suitable for carpenters, mechanics, homeowners to repair cabinets, floors, wooden toys, construction and other corks, fiberglass.The tapered male thread secures it in place and prevents it from pulling out due to vibration.Installation Notes: Need to drill a small hole of suitable size with an electric drill.Use a hex wrench to screw it into the hole.Then insert the nut and turn it several times.Please tighten the nut completely.After that, the nut does not loosen and is firmly connected to the wood. Note: The depth of the pre-drilled hole should be deep to the length of the inserted nut.Package Included: 50pcs M8*20mm Insert Nuts