What does central locking mean on a vertical file cabinet and is it the same as an interlock?

Central locking and interlock are two different mechanisms. Central locking means all drawers are secured by a single key-operated lock bar — turning the key locks all drawers simultaneously. An interlock mechanism prevents multiple drawers from being opened at the same time (a tip-prevention safety feature). Many premium commercial cabinets have both: central locking for security and an interlock for safety. Budget models often have neither. OfficeFurniture2go.com's commercial cabinets include both features — call 1-800-460-0858.