Abstract: The electrical connector is physically attached to the external surface of a metallic structure (and which might contain flammable fluid) solely by virture of an annular layer of resinous adhesive. The annular adhesive layer is carried by the centrally-open lower-side of a frame member to provide vertically aligned central-openings for the adhesive and the frame member lower-side. At least one electrically conductive and upwardly deflectable contact member is located within the frame member and includes a contact member lower free-end protruding through the vertically aligned central-openings so that the free-end is initially disposed below the adhesive layer. However, once the electrical connector is physically adhesively attached to the metallic structure external surface, the contact member free-end is in electrically conductive abutment against the metallic structure external surface, and hence, is substantially co-elevational with the adhesive layer physical attachment.