US Patent 8485910 Sealed end t-nut

A fastener includes a t-nut having a barrel and a flange. The flange includes an opening which leads to a threaded barrel. The threaded barrel extends from the opening in the flange to a distal end portion thereof. An end cap has an annular recess on a first side thereof and has a raised annular ridge on a second side thereof. The raised annular ridge of the end cap is affixed to the flange of the t-nut by welding the end cap to the flange. Dirt, water and moisture cannot enter the barrel because the end cap is sealed to the flange. Additionally, the barrel may be relatively short as it is fully threaded prior to the affixation of the end cap to the flange.