CoreLock is a hassle-free rebar positioner that ensures a secure installation. CoreLock is seated 11/4-in. into the CMU core, rather than on top of the block. Diagonal placement ensures rebar is always centered in the core and prevents movement. CoreLock’s one-piece design has no weld and does not interfere with installation of wire joint reinforcement. CoreLock is available in 9-ga. hot dipped and mill galvanized finishes for both 8 and 12-in. block. Wire-Bond. 800-849-6722.