A cast aluminum base with 2-way cable holder. Threaded for top or side mounting. Features a wide mounting surface for a variety of mounting applications. 5/16-18 stainless steel bolt and washer. 3-1/8 x 3-5/8 in. (79.4 x 92 mm). Approximately 4.8 oz. (136 g). Use suffix 1/2 or 5/8 inch to denote air terminal thread size.