Morris 14142 EMT Set Screw Conduit Body, Aluminum, Type LB, 1" Thread Size Aluminum EMT Set Screw Conduit Bodies LB Type - EMT Aluminum Conduit Bodies for EMT Conduit . EMT Type LB conduit body Provides Access to Conductors for Pulling, Splicing and Maintenance Set Screw for EMT Conduit Rain Tight When Used with Gasketed Cover