Material: the hexagon socket nut is made of color galvanized carbon steel, high hardness, not easy to deform, corrosion resistance, good fastening effect, and can be screwed easily. Features: The nut has high strength and impact resistance, and is more stable when connecting with wooden furniture, effectively prevents loosening, and can be firmly fixed for a long time. Overall size: 11 different screw sizes M4*8/30pcs M4*10/60pcs M5*10/45pcs M6*8/18pcs M6*10/32pcs M6*13/13pcs M6*15/12pcs M8*15/10 pcs M8*20/5 pcs M10*15/3 pcs M10*25/2 pcs Safety Tips: Drop wood glue into the hole (on the side wall), insert and make Turn the nut several times, drop some glue on the thread of the nut, then fully tighten the nut so that it is flush with the wood.Flat and as dry as possible.Scope of application: Suitable for soft wood such as pine, plywood, fiberboard etc. (a small hole should be drilled before installation).Material: Zinc AlloyType: Hexagon Socket ScrewsFeatures: These insert nuts are made from a high quantity zinc alloy and come in a clear resealable plastic box.The insert screw nuts have a external thread and can be screwed in with a hex key.This screw-on insert nut set comes in different sizes and takes different size screws.Widely used in the installation of fasteners industry mechanics, furniture, etc. 230 insert nuts are enough for use. 1. Please allow 1-3mm differs due to manual measurement. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Product Size: 17.3 x 9.8 x 2.3 cm. Quantity delivered: 230 pieces