Package Includes:230pcs x Insert Nuts Content:(Size/PCS) M4*8 /30pcs M4*10/60pcs M5*10/45pcs M6*8 /18pcs M6*10/32pcs M6*13/13pcs M6*15/12pcs M8*15/10pcs M8*20/5pcs M10*15/3pcs M10*25/2pcs Specifications: Quantity:230pcs Material: Zinc alloy Type: Hex socket screw-in Color:as pictures show Features: These insert nuts are made from high quantity zinc alloy and comes in a resealable transparent plastic box. Screw-in insert nuts have an external thread and can be screwed in with a hex key wrench. This set of screw-in insert nuts come in different sizes and take different screw sizes. Widely used in the installation of mechanical fastener industry, furniture,etc. 230pcs insert nuts are enough for using. Note: 1.Please allow 1-3mm difference due to manual measurement. 2.Due to light and screen difference, the item's color may be slightly different from the pictures. 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. Safety tips: drop wood glue into the hole (on the side wall), insert and rotate the nut several times, drop 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: Suitable for soft wood such as pine, plywood, fiberboard, etc. (a small hole must Product information: Product Name: Hexagon Socket Head Cap Screws Material: iron Surface treatment: galvanized Head type: hex head Need to drill a small hole of suitable size with an electric drill, Use a hex wrench to screw it into the hole, Then add 2-3mm of wood glue to the hole (on the side wall). Insert the nut and turn it several times, Then place 2-3 mm of glue on the thread of the nut, Then turn the nut 180 degrees, Please fully tighten the nut, After that, the nut does not loosen and is firmly connected to the wood. Remark: The depth of the pre-drilled hole should be deep to the length of the inserted nut and the bolt can be turned beyond the depth of any part of the end of the nut.