Exceptional Quality Materials - Made from high-quality carbon steel and enhanced with galvanizing technology, these Jack Nuts offer superior rust and resistance. This makes them ideal for long-term use in environments, including marine settings, ensuring reliability and a longer service life. Easy To Install - These petal nuts are designed for manual and pneumatic tools. The installation is very simple, you can use a wrench or pliers. One way is to fix the rivet nut so that it does not rotate after being inserted into the hole. Screw the appropriate size screws into the nuts. Tighten the nut with another wrench/pliers. When you tighten the screws/bolts, the nuts curl and secure in place. Don't tighten it too tightly, otherwise the wire may peel off. Reliable Performance - Choose expansion screw petal nut for excellent reliability and service life. The expansion head of the nut is relatively large and can be firmly fixed on the plate, with good load-bearing capacity, durability, and long service life. Versatile Applications: These Jack Nuts with Screws are perfect for a wide range of applications, from household DIY projects to industrial installations. They are especially effective in thin or hollow materials where traditional fasteners fail, such as hollow doors, aluminum frames, and license plates. Colour:Silver Material:Carbon Steel Package Contents: 80x Expansion Screw Petal Nut 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.