Published on September 22, 2018. 1 4 Top Beam Clamp. Caddy top mount beam clamp, 304 stainless steel 1rvr5, cramik enterprises 3/8 in top beam clamp 2004a on popscreen. Conduit hanger with 1/4 20 beam clamp, for 1/2 in emt or. Travel Roach.