Electrical Conduit Box Through Type
Black Enamel, Hot dipped galvanized
BS EN 50086 -1
60.3mm internal diameter with 25-28mm deep, tapped M4 at 50.8mm centres.
81mm internal diameter, for conduits of 20 & 25mm diameter with 35mm deep, and 32mm
diameter with 38mm deep. Tapped M4 at 71.5mm centres.
Small Special Deep Model
60.3mm internal diameter x 62mm deep. Tapped M4 at 50.8mm centre.
All the above models are available with tapped hole in the base for grounding
screw. Covers and fixing screws need to be ordered separately.