High quality steel: galvanized technology to prevent rust and corrosion and long-term service life. High hardness and high fracture load that the nut is difficult to deform and break. The precise threads and dimensions match well with the holes and bolts. Quick installation: Hand or pneumatic tools make installation easier. You can use 2 spans or pliers. One can hold the rivet nut so that it does not rotate when inserted into the hole. Screw the correct size of the screw into the nut. Use other wrenches/pliers to tighten the nut. The nut will curl and remain in place when tightening the bolt/bolt. Do not exceed , otherwise you can split the thread. Easy to use: Equipped with screws for easy installation. Step 1: Insert the jack nut into the recommended drilling hole until it is flush with the surface of the substrate. : Install the instantiation tool on the screw head and squeeze to expand the anchor bolt; Step 3: Remove the screw and thread it through the fixing device. Tighten the screws on the parts to be connected. Package includes: You will receive 80 x 20 jack nuts. Many of them can meet all your . High quality galvanized steel, galvanized to resist corrosion and rust. Application scope: Suitable for hanging curtain rods, lights, picture frames, wall cabinets, wall panels, hangers, lights, power switches, clocks, car boards, drying racks, and container labels. Suitable for substrates, such as wall panels, concrete, wood, ceramics, cardboard, and thin plastic or metal sheets (iron, hollow panels, aluminum frames). Material: steel colour: Silver Package Contents: 80 x Petal Nuts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.