Hoffman E4SPBG, Push Button Encl, 4Pb X 22.5Mm, 54MmThese pushbutton enclosures are designed to hold 30.5-mm or 22.5-mm pushbuttons and switches.Features:16 or 14 gauge steelSeams continuously welded and ground smoothCaptivated cover screws thread into sealed wellsGrounding nut in body of enclosureBonding provision on coverOil-resistant gasketFactory stamped 4-way pushbutton holesEnclosures with more than one column of pushbutton holes have internal detachable hingeExternal wall-mounting brackets