Master Lock cylinders are available in a range of configurations to suit different security and keying needs, including keyed alike, keyed different, and zero-bitted options. These interchangeable cylinders are compatible with various Master Lock padlock models, offering flexibility for single-lock use or large-scale systems. Keyed alike cylinders allow multiple locks to open with the same key for convenience, while keyed different provides unique keys for each lock. Zero-bitted cylinders are ideal for custom keying on-site. Perfect for maintenance, security upgrades, or lockout/tagout programs.