Material: The hexagon socket nut is made of color galvanized carbon steel, high hardness, not easy to deform, corrosion resistance, good fixing effect, and can be easily screwed. Features: The nut has high strength and impact resistance, and is more stable when connecting with wooden furniture, effectively prevents loosening, and can be securely fixed for a long time. Tips safety: 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 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 Product information: Product name: Hexagon socket head cap screw Material: iron Surface treatment: galvanized Head type: hexagon 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 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 tighten the nut completely, After that, the nut will not loosen and is firmly connected to the wood. Note: 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 nut end.