BUD Industries JBH-4944-KO Steel NEMA 1 Sheet Metal Box with Knockout and Hinged Cover, 4" Width x 6" Height x 3-1/2" Depth, Gray Finish Heavy duty 16 GA welded steel construction Hinged cover with slotted-head quarter-turn cam lock Four wall mounting holes in back Durable ANSI 65 grey powder coating Measures 4" width by 6" height by 3-1/2" depth