A loop forming fastener including a ratchet and locking features that can be utilized to provide for a desired loop size. The loop forming fastener may include an elongate body portion having a first end and an opposite tail portion, with a head connected to the elongate body, the head defining an opening configured to receive the elongate body to form a loop. A ratchet may allow movement of the body through the opening in a first direction, but prevents movement in a second direction. The elongate body may include a stopper to maintain at least a minimum loop size. The head may include a locking mechanism to lock the elongate body, and thereby establish a desired size of the loop.