Product Name: Hex Socket Head Cap Screw Material: Iron Surface Treatment: Galvanized Head Type: Hex Head You will get: 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 Installation Notes: You need to drill a small hole of the right size with an electric drill. Use a hex wrench to screw it into the hole, Then add 2-3mm of wood glue into the hole (on the side wall). Insert the nut and turn it several times, Then apply 2-3mm of glue to the threads of the nut, Then turn the nut 180 degrees, Please tighten the nut completely, After that, the nut will not loosen and will be firmly fixed to the wood. Notice: The depth of the pre-drilled holes should be as deep as the length of the inserted nut, and the bolt can be turned beyond the depth of any part of the nut end. Material: The inner hexagon nut is made of color galvanized carbon steel, with high hardness, not easy to deform, corrosion resistance, good clamping effect and convenient clamping. Features: The nut has high strength, impact resistance, more stable connection with wooden furniture, effectively prevents loosening, and can be firmly fixed for a long time. Safety Tip: Pour wood glue into the hole (on the side wall), insert the nut and turn it a few times, pour the glue onto the nut threads, and then tighten the nut fully so that it is flush with the wood. Be as dry as possible. Scope of application: Suitable for soft woods such as pine, plywood, fiberboard, etc. (A small hole must be drilled before installation).luckymeet