- Package Includes: 80-piece M4 Jack Nuts Petal Nuts Assortment Kit, providing ample quantity to meet your everyday fastening needs. - High Quality: Crafted from premium carbon steel, these M4 Jack Nuts feature enhanced rust and corrosion resistance thanks to advanced galvanizing technology, making them suitable for use in marine environments. - Easy Installation: Simply drill a hole to the appropriate size, insert the jack nut, and use a tool to pull the bolt, allowing it to expand and anchor securely. The larger expanded head ensures a tight grip on the plate, offering excellent load-bearing capacity. - Fast Installation Options: Compatible with both manual and pneumatic tools, installation is straightforward. Use two wrenches or pliers—one to stabilize the rivet nut during insertion and the other to tighten the securing screw. Avoid over-tightening to prevent thread stripping. - Practical Applications: Ideal for automotive repairs, furniture assembly, and construction projects. Whether you need to reinforce panels or attach components securely, this versatile kit has you covered. - Compatibility: Designed specifically for M4-sized applications, making it an essential addition to any toolbox. - Performance: Proven reliability under various conditions ensures that your projects maintain structural integrity and safety. This M4 Jack Nuts Assortment Kit is the ideal solution for anyone seeking durable and efficient fastening options for a range of applications.