[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. [Inserts Nuts Assortment Kit] Wood thread inserts are used for pre-embedded connectors, wooden furniture. Standard hexagon socket head, smooth and flat, features flanged thread texture, stable structure and easy installation. [Design] The thread surface of the nut is smooth without burrs, and the screw sleeve can be screwed on quickly. Precise external thread and beveled inner hex head ensure that the clamping nut is correctly positioned and firmly installed. [Easy to install] Just drill the appropriate size hole and install it with a hex wrench, the tapered external threads make it difficult to fall off due to vibration. [Scope of application] Suitable for soft wood such as pine, plywood, fiberboard, etc. (a small hole must be drilled before installation). Product Description Wood Threaded Insert Zinc Alloy Screw M4 M5 M6 M8 Threaded Insert Hex Socket Screw Nut For Wood Furniture Material: Zinc alloy. Quantity: 230 pieces 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 12pcs M6*15 hex screws 10pcs hex screws M8*10 5pcs M8*20 Hexagon Screws 3pcs M10*15 Hexagon Screws 2pcs M10*25 Hexagon Screws Safety Tips: Drop wood glue into the hole (on the side wall), insert and rotate the nut several times, drop glue onto the nut threads, and then fully tighten the nut so that it is flush with the wood. Flat and as dry as possible.