WEATHERPROOF HEAVY DUTY 4 1/2 (114) ROUND OUTLET BOX VMX SERIESMATERIAL:Diecast aluminum.FINISH:Electrostatic powder epoxy/polyester polymerized coating.For wet locations when gasketed cover are used. NEMA 4,4XNPT threaded for use with RIGID and IMC conduit.Furnished with 5 tapped holes and 4 threaded close-up plugs.Hub sizes: 1/2 (12.7), 3/4 (19.05), 1 (25.4).Green ground screw included.Four mounting holes.Blank cover screw holes prevent conductor damage during installation, provide water-tightness.APPLICATIONS:For pendant or wall mounting in H.I.D. VM Series and other lighting fixtures.In installations of threaded RIGID and IMC conduit.Provide openings for making splice and taps.Allows access for maintenance.Manufactured in compliance with:UL 514 ACAN/CSA-C22.2 No. 18-92 DOWNLOAD SPEC SHEET