B-Line 4 7/8” OD Pipe Rigid Steel Conduit Clamp B2060 Complete NOS 277H. This B-Line 4 7/8" OD Pipe Rigid Steel Conduit Clamp B2060 Complete NOS 277H is a high-quality unit type accessory designed for electrical equipment and supplies. It is made of rigid steel material and has a compression connection type. The conduit clamp is suitable for rigid metal (RMC) conduit type and has a bracket mount style for easy installation. The clamp is available in many colors and has a 4 7/8" OD item diameter with a flexible yet rigid design. This accessory type is perfect for use in conduit fittings and tubing, as well as wire, cable, and conduit applications. Made in the United States, this complete NOS 277H conduit clamp is a reliable choice for various industrial and business needs.