[ Perfect packaging] 11 sizes: M4*8, M4*10, M5*10, M6*8, M6*10, M6*13, M6*15, M8*15, M8*20, M10*15, M10*25. Different sizes can meet your different needs. [Insert Nuts Assortment Kit] Threaded wood inserts are used for pre-embedded connectors, wood furniture. Standard hexagon socket head, smooth and flat, features flanged thread texture, stable structure and easy installation. [Design] The nut thread surface is smooth without burrs and the screw-on sleeve can be screwed on quickly. Precise external thread and beveled inner hex head so that the clamping nut is correctly placed and firmly installed. [Easy to install] Just drill the appropriate size hole and install it with a hex wrench, the tapered outer threads make it hard to fall off due to vibration. [Scope of application] Suitable for soft wood such as pine, plywood, fiberboard, etc (a small hole should be drilled before installation). Product Description Wood Threaded Insert Zinc Alloy Screw M4 M5 M6 M8 Threaded Insert Hexagon Screw Nut Hollow For Wooden Furniture Material: zinc alloy. Quantity: 230 items in total. Package includes: 30pcs M4*8 hex screws 60pcs M4*10 hex screws 45pcs M5*10 hex screws 18pcs M6*8 hex screws 32pcs M6*10 hex screws 13pcs M6*13 hex screws < p>12pcs M6*15 Hex Screws 10pcs M8*10 Hex Screws 5pcs M8*20 Hex Screws 3pcs M10*15 Hex Screws</p > 2pcs M10*25 hex screws Safety Tips: Drop some wood glue into the hole (on the side wall), insert and twist the nut several times, drop some glue on the threads of the nut, then fully tighten the nut so that it is flush with the wood. Flat and as dry as possible.