Bridgeport 0.500 Inch Rigid to rigid 90 Deg pulling elbow is made of die cast zinc for added strength and durability. It is designed for connecting threaded rigid/IMC toform 90 deg bend. It comes in size 1.312-Inch offering setscrew female type end for convenient installation. Elbow includes removable aluminum cover to enable wire pulling. It meets NEMA FB-1 standard, Federal Standard A-A-50553 and is UL-514B, UL File E9391 listed. Also known as -Bridgeport 81-DC Rigid To Rigid 90 Degree Pulling Elbow 1/2 Inch Female Threade