Halex 96195 Conduit LOCKNUTS, 1-1/2&rdquo;, Silver For indoors only Use to secure Rigid, IMC conduit or various threaded fittings to a steel outlet box or other metal enclosure UL listed Control No. 43Y8 CSA File No. AP98113 1-1/2-Inch trade size For indoors only UL listed Control No. 43Y8 CSA File No. AP98113 1-1/2-Inch trade size