Blank 1/ 2 Module
Galvanised Steel knockout box.
Steel construction. Black powder coating.
Inside diameter of hole is equal to approximately 30% of overall length.
Form A. A2 Stainless Steel. Free of hexavalent Chrome.
Form A, BZP.
Electro Brass and white. Size is from shoulder.
Nylon Plug with hardened drive Screw. Fast, cheap way to fix battens, conduit etc to masonry.