Karlyn 5143 High Security Mailbox Key Blank

The Karlyn 5143 is an uncut key blank designed for high security mailbox locks, providing a reliable solution for creating additional key duplicates. Constructed of durable brass material, this key blank ensures long-lasting performance and corrosion resistance.

Key Features:

• Compatible with A1001 through A3000 series Architectural Mailboxes high security locks installed on 6200 Oasis Classic or 620020 Oasis TriBolt model mailboxes
• Designed for locks with keys marked with 'A' or 'Y' followed by 4 digits (example: A1357 or Y1357)
• Double-sided key design that cannot be cut by automated duplicating machines
• Must be duplicated at a professional locksmith for proper security
• Silver finish with rectangular key shape

Important Note: An existing cut key is required to duplicate this key blank. Due to the high-security design of this specialty key blank, standard automated key cutting machines cannot be used. Take your existing key and this blank to a qualified locksmith for professional duplication to ensure proper fit and function.