Cast bronze or aluminum clamp for use in supporting cable on metal column or rib — may be used on column edge to 1/2” thick — compression type cable holder for main sized cable through No. 605 — with one 1/4” bolt for tension on column or rib. Rubber caps included on bolts to prevent damage to roof. Recommended torque on mounting bolt: 15 in./lbs. maximum. Overall dimensions – 1-1/4” x 1-1/4” x 1-1/2”.