12 ga G-90 grade galvanized steel coversCaptivated stainless steel cover screws thread into sealed wellsOil-resistant gasket and adhesiveSeams continuously welded and ground smoothNo holes or knockoutsGrounding stud on inside back of box
nVent HOFFMAN A12128GSC A90GS Enclosure, 12 in L x 12 in W x 8 in D, NEMA 3 NEMA Rating, Steel