These rivet nuts are essential for any DIY enthusiast or professional looking to add threaded inserts to metal surfaces. The zinc alloy construction ensures performance, while the flat head design provides a flush finish. To install, simply drill the appropriate size hole, insert the rivet nut, and use a rivet nut tool to secure place. Features -Color:Silver -Material:Zinc alloy -Size:1.00X0.80X0.80cm/0.39X0.31X0.31in; ( ); thickness: 9mm; outer diameter: 5mm -Size:1.40X1.10X1.10cm/0.55X0.43X0.43in; (M5); thickness: 13mm; outer diameter: 7mm -Enhanced grip knurled nut: the knurled nut design enhances grip, making installation easier and more secure, while also adding a stylish look -Flat head design: the flat head vertical striped rivet nut is designed for easy installation, ensuring a secure fit in various applications -Ample supply: with sufficient in each pack, this product provides a sufficient quantity for a wide range of needs, from diy projects to professional use -Reliable and : made from reliable materials, these rivet nuts are designed to withstand wear and tear, ensuring long term reliability -Ideal for mechanical equipment: these rivet nuts are suitable for use in various mechanical equipment, offering versatility and convenience Package list: 100 x rivet nut