R-N Series® RivetNut Threaded Insert features a heavy duty head profile and increased wall thickness in the collapse area. This makes the R-N RivetNut ideal for leg leveling. R-N Series® RivetNut Threaded Insert can be installed using AVK’s SPP™ Pneumatic/Hydraulic Tools. The R-N Insert’s heavier wall thickness and resulting upset load requires this type of tool be used for installation.