Garvin Industries Beam & Purlin attachments are used when the installer needs to hang boxes, conduits, cables, or light fixtures from a buildings structural members.  Various rods, clamps, and supports accommodate fasteners with 10-24, 1/4-20, 3/8-16, 1/2-13, 5/8-11 & 3/4-10 threads.  These products are made from a variety of spring steel, malleable iron and cold rolled steel.