This product is designed and engineered to deliver exceptional performance with a heavy-duty, impact-resistant construction. It features factory-installed "O" ring seals that provide reliable protection against lubricants and other liquids. Constructed entirely from malleable iron, it includes a full-size UL locknut and a threaded locking mechanism that ensures a secure fit with enhanced holding strength. The outer bushing conforms to the nut and conduit, enabling quick and easy installation. Certified to UL 514B standards and UL/CUL listed, this product is built for durability and dependability. UL Listing number: E365150.