A cast aluminum base with 2-way bolt pressure cable connector. 1-way bolt pressure clamp on backside joins the unit to a standing seam without penetration. Creates a strong and rigid base for parallel runs of cable. Stainless steel bolt, nut and washer. 2-13/16 x 2-15/16 in. (71.44 x 76.61 mm); Approximately 5 oz. (142 g). Use suffix 1/2 or 5/8 inch to denote air terminal thread size.