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The No. 312 Master Key is part of Master Lock
- Special Ordering: See below for Special Order information (i.e., ordering keys to existing key number).
No. 312 Master Key by Master Lock
Features: Stock Master Key works with stock Master Lock Key System Nos. 312MK, 312NMK, 312KAMK, 312NKAMK, 312MKLF, 312NMKLF, 312KAMKLF, 312NKAMKLF, 312MKLH, 312NMKLH, 312KAMKLH & 312NKAMKLH locks.
Special Ordering: If you require any master key keyed to an existing key number or lock please leave a note in the Comments Box upon checkout (you can also immediately reply to the Confirmation E-mail with special order instructions).