Mailbox Locks of 2025
Best Choice1
Compx National13% OffCompX National C9100 USPS-L-1172C Mailbox Lock (Clockwise) (10 Pack)
Main highlights- New style C9100 USPS postal mailbox lock manufactured by Compx/National.
9.7Exceptional
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Value for Money2
KenningKenning 24 Sets Cabinet Locks with Keys for Secure Drawer Mailbox RV Storage Box Replacement Lock, Zinc Alloy(5/8'' Cylinder Length, 0.4'' Max Panel Thickness)
Main highlights- Zinc Alloy Material: mailbox lock is mainly made of zinc alloy, has strong precision casting, chrome plating surface, anti-oxidation process, solid casting, fine craftsmanship and reliable quality enable you to use for many years
- Wide Range of Usages: these cabinet locks with keys are suitable for filing cabinets, display cabinets, lockers, RV doors, cabinet doors, drawers, tool boxes, mailboxes and locks for camping vehicles, provide you with a secure and privacy environment for your daily life
- Size Information: cylinder length is 5/8"(16mm), fits up to 0.4"(10mm) panel thickness, this replacement cabinet locks can be installed on metal or wood, doors and drawer fronts; Please see picture for more detailed dimensions
- File Cabinet Lock Set: you will get 24 pcs mailbox lock replacement, 48 pcs lock plates (2 types of lock plates included) and 24 pcs same keys, it will satisfy your one time purchase needs
- Easy to Install: these tool box locks are simple structure and easy to install, which provide you a quick way to solve the cabinet lock installation of problem, protect your belongings, provides extra security for your small items and drawers
9.4Excellent
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3
PRIME-LINEPrime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)
9.7 Security9.1 Easy installation8.9 worth the moneyWhy we love it
Easy to install with clear instructions.
Works with multiple mailbox brands.
Includes all necessary parts and two keys.
9.1Excellent
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4
PRIME-LINE10% OffPrime-Line MP4946 Mailbox Lock, 1-9/16 In. Cam Reach, Diecast Construction, Nickel (Single Pack)
Main highlights- Used to replace damaged or missing mailbox locks by Cutler Federal
- This mailbox lock rotates in a counter clockwise direction to lock
- This mailbox lock mounts with a spring steel locking clip, included with item
- Please refer to the line art drawing for dimensions and compare with your needs before ordering
- No tools are required for installation
- Diecast construction with brass pins and a nickel plated face
- Can eliminate stocking of individual locks
- 1-9/16 inch reach of cam
9.0Excellent
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5
COMPX NATIONALCompX USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys)
Why we love it
Comes with three keys for convenience.
Easy installation with included hardware.
Durable and long-lasting build quality.
8.9Very Good
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6
Ymtzfu1 Pack Mailbox Lock with Key, Mailbox Lock Replacement for L-1172C Mailbox Key Lock, Nickel Finish
Main highlights- WHAT YOU GET: 1 pack of mailbox locks includes 1 lock cylinder, 3 keyed alike, 5 shaped locking tabs and 1 nut.If you order more than one set of locks, each set has a different key between the locks and will not pass through to the other locks.
- SERVICE: mailbox replacement locks are USPS compliant and perfect for replacing C9100 mailbox key locks. If there is any problem, please feel free to contact us, we will solve it for you in time.
- SECURITY: Replace your mailbox lock and upgrade your mailbox security immediately. Avoid the worry of not being able to access your valuable mail.
- HIGH QUALITY: The L-1172C mailbox lock replacement is made of the finest materials with a rolled nickel surface to ensure durability and long-lasting performance, perfect replacement for your old mailbox lock ideally.
- EASY TO INSTALL: The keyed mailbox lock includes a full range of accessories, no need to hire a professional locksmith, you only need 5 minutes to complete your mailbox lock installation or replacement, eliminating the need for a complicated installation process (refer to the instructions in the attached picture).
- COMPATIBILITY: The versatile design of the mailbox lock ensures compatibility with a wide range of mailbox models.
8.8Very Good
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7
21st Century Building Specialties11% OffReplacement Tenant Mail Box Lock for 1570 "F" Series CBU & 4C Mail Units by AF Florence
Main highlights- This lock is USPS approved and is used by the factory on new units
- Note: Mail unit brand (e;g;, "AF Florence"") is usually noted on nameplate attached to mail unit
- Note: Mail unit brand (e;g;, "AF Florence"") is usually noted on nameplate attached to mail unit
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions
8.7Very Good
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8
Compx SecurityCompx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock
8.6Very Good
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9
Yqwwda13% OffYqwwda 1 Pcs Mailbox Locks, National L-1172C Mailbox Lock Replacement for C9100 Mailbox Key Lock with 3 Keys and C7120 Cam, Nickel Finish
Why we love it
High-quality zinc alloy construction.
Easy to install with included hardware.
Enhanced security for peace of mind.
8.5Good
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10
YqwwdaYqwwda 3 Pack Mailbox Locks, National L-1172C Mailbox Lock Replacement for C9100 Mailbox Key Lock with 3 Keys, Nickel Finish
Main highlights- You will Get: 3 Pack mailbox lock replacement locks(Each packincludes 1 lock cylinder, 3 keyed alike, 5 different locking tabs); if purchasing multiple sets of replacement locks, each set of locks matched with different keys between them.
- Wide Compatibility: The replacement lock is compatible with L-1172C mailboxes, which makes it easy to replace lost or damaged mailbox locks, making it the best choice for mailbox replacement locks.
- Service with Heart: Aims to provide you with high quality mailbox replacement locks to protect your safety. If you have any questions about our products, please feel free to contact us, we will reply you as soon as possible within 24 hours to solve the problem.
- Premium Replacement Lock: The mailbox lock replacement parts are made of high quality zinc alloy, the cylinder surface is rolled nickel, and the locking piece fittings are corrosion-resistant galvanized for enhanced rust resistance, ensuring long-term indoor and outdoor use.
- Enhanced Security: Upgrading your mailbox lock with the L-1172C mailbox lock replacement lock ensures secure access to your mailbox, providing extra peace of mind for your mail or belongings.
- Easy Installation: Installation of the mailbox lock replacement is a breeze, simply remove the old lock and replace it with the L-1172C National Mailbox Lock Replacement C9100. It comes with all the necessary hardware and detailed instructions (view attached photo).
8.4Good
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