[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] 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).Number of pieces delivered: 230