Patent Pending Riv-Float™ BLIND THREADED INSERT NUTS have floating internal threads which allow for component attachments in off-center applications. The radial float of 0.020" allows the nut to drive the angle of the screw, eliminating cross-threading and spin-out. The kits and bags featured here contain sample sizes of Large Flanged Nuts and tools for a variety of applications. Small Flange versions and individual parts are available directly from EFC-International.