Hoffman A1412NF, J Box, Clamp Cover, Type 4, 14.00X12.00X6.00, Steel/GrayClamps on all four sides securely close this enclosure to protect components in indoor or outdoor applications, yet are easy to remove for access and modifications.Features:16 or 14 gauge steel (see table)Seams continuously welded and ground smoothStainless steel clamps on four sides of coverBonding provision on coverOil-resistant gasketWeldnuts for mounting optional panels and terminal block kits in size 6.00 x 4.00 in. (152 x 102 mm) and largerExternal wall-mounting brackets