MacLean Senior Industries Aerial Line Hardware, model J931, is precision-manufactured aerial hardware used to secure and support overhead telecom, broadband, and utility lines on pole and strand installations. This hardware integrates into standard aerial line construction, providing a dependable connection point that holds up to wind, ice, and temperature cycling over the life of an outside plant network. MacLean's aerial hardware is a trusted choice among linemen and fiber construction crews for consistent fit and long-term durability on utility pole and aerial fiber optic cable routes. Millennium stocks the J931 ready to ship for aerial construction and maintenance projects. Millennium Part #527992.