STEEL CITY 58371 1/2 CN ELECTRICAL BOX, 4″x2-1/8″x2-1/8″, STEEL (LOT OF 2) NNB 58371 1/2 CN. STEEL CITY ELECTRICAL BOX, 4"x2-1/8"x2-1/8", STEEL (LOT OF 2). Part Number. byJuly 3, 2026