Reduced Head Knurled Body Rivet Nut M31) Material: Carbon Steel C1006/C1008/C10102) Thread Size: M3, M4, M5, M6, M8, M10, M123) Surface Treatment: zinc white/zinc yellow/ zinc back Rivet Nut is specially designed for use in "blind" attachment applications where only one side of a workpiece is accessible for fastener installation and final component assembly. It has been widely served as a practical alternative to weld nuts, rivets, and self-drilling or tapping screws. Established in 2000, Shanghai Eastern Waves Co., Ltd. In China. Is specialized in supplying a wide range of fasteners, such as retaining rings, Circlips, Snap rings, flat washers, spring washers, parallel keys, pins (coiled spring pins and split pins), rivet nuts, hex nuts, flange nuts, eyebolts, eye nuts, screws and so on in China. We supply not only standard fasteners but also special fasteners according to customers' drawing or samples.