Minerallac® Minerallac Traditional® Conduit Strap, 2-Hole, 3 in Conduit, Surface Mount, For Use With: 3 in EMT/Rigid/IMC Conduit, Silver Color, 0.09 in THK, 3/8 in Mounting Hole OC, Steel, Zinc Plated, 7.438 in L x 1.25 in W x 3.55 in H