Threaded Insert Nuts Kit: 125Pcs hex socket screw-in nuts including 7 different sizes, M4 * 10, M5 * 10, M6 *10, M6 * 15, M8 * 15, M8 * 20, M10 * 25, all the nuts are classified in a storage box for sorting and finding quickly as needed. Zinc Alloy Screw-in Nuts: Made of high quality zinc alloy hex socket insert nuts is sturdy and no deformation, anti-corrosion and anti-oxidation for eternal usage. Wood Furniture Must-Haves: External thread help you add supporting parts with positive locking and strong resistance. Torsion or vibration the nuts make your wood furniture stay firmly in place. Wide Application: A threaded insert nuts kit is excellent for tightly fixing and replacing broken down wood screw holes. Widely used in furniture combination, cabinets install, floors, wooden toys construction, corks and other fiberglass. Easy to Install: No need to back-drill and counter-sink the hole. Drill a hold smaller than the outer diameter of 0.2-0.5mm, use a hex key to screw the screw-in nut into the hole. Add some wood glue to the outer teeth can make great fastening effect after lock the nuts.