Solid brass plug blades are firmly embedded in body. Terminal screw clamps are designed to contain wire and prevent binding. Terminal screws backed out – ready for wiring. Terminals in individual chambers to positively insulate conductors. Vinyl angle plugs have eight possible positions for maximum convenience. Vinyl plugs and TPR rubber connectors resist chemical attack and stay flexible in extremely low temperatures. Armored housing automatically grounded. Combination slot/Phillips head mounting and terminal screws ease installation with power screwdrivers.