Hilitand Rivet Nut, M3-M12 Carbon Steel Rivnut, Flat Threaded Rivet Nut, Flange Rivnut Nutsert Fastener (M12x20pcs)

Good Performance: With open end, small flange, round hole, threaded inner wall and partial anti-skid surface, this flat head rivet nut has a good performance as fastener. Convenient to Install: designed to form a bulge on the back side of the panel as a screw is tightened in its threads. The boss sits within the components being fastened, the flange provides the bearing surface, ensures a good performance of fastening. Material: Made from zinc plated carbon steel which provides strength, corrosion protection and long service life. Meet Your Needs: There are seven different sizes from M3 to M12 that you can choose as needed for various purposes. Package Include: Each set includes many pieces of rivet nuts so you don't have to go to hardware store searching rivet nuts for a while.