A metal locking tie (50) is disclosed. The metal locking tie (50) includes a tie body (150) and a bi-level head (100). The tie body (150) includes a first end (152) and a second end (162). The first end (152) of the tie body (150) is secured to the bi-level head (100). The bi-level head (100) includes a roof (102), a bottom wall (106), a primary head floor (112) and a secondary head floor (114). The bi-level head (100) also includes a locking ball (128) positioned within the head (100). The primary head floor (112) includes a locking displacement hole (124) for receiving the locking ball (128). When the second end (162) of the tie body (150) is tensioned, the locking ball (128) moves toward the locking displacement hole (124) to secure the tie body (150) in the bi-level head (100).