National Hardware N104-570 Triple Box Rail Bracket, Steel, Galvanized

Designed to join a triple run of #5114 or #5116 box rail. Includes two lag bolts. Can be used for triple bi-passing doors. Can also be used without middle bracket for 3-1/2 in bi-passing doors. One splice bracket should be installed on every length of rail to lock it in place. 300 lb. Safe working load.