DescriptionSpecificationsDescription#8-32, 0.438" Diam x 0.052" Thick Flange, Rubber Insulated Rivet Nut UNC Thread, Rubber, 5/16" Body Diam, 1/2" OAL (MOQ=1, Pkg Qty=25)SpecificationsManufacturer Item No.JF-4100Manufacturer NameRivetKing.