Flange Nut, Non-Serrated

Similar to serrated flange nuts, non-serrated flange nuts are a hex nut with a non-spinning washer attached at the bottom. Underneath the washer is smooth underneath the flange and does not contain serrations. Non-serrated flange nuts are used when material has to be flat to the surface. This nut will not dig in to the mounting surface causing a better continuity between the two surfaces.