OZ-Gedney Type THR Pipe Strap, Steel, Finish: Zinc Plated, Mounting Holes O.C: 4-11/16 IN, 5/16 IN Mounting Hole Width, 2 Holes, 1 IN Width, Length: 5-23/32 IN, Trade Size: 2-1/2 IN, Applicable Third Party Standards: CSA C22.2 No.18, Federal Specification FF-S-760, For Supporting Rigid Conduit, IMC And EMT Conduit