Updated: 17 Feb 2025

mailbox locks

Explore up to 36% Off

Updated: 17 Feb 2025

#1

Best Choice
CompX National C9100 USPS-L-1172C Mailbox Lock (Clockwise) (10 Pack)

9.7

Compx National

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Main highlights

Special C7120 cam NOT included.

Includes Mounting Clip, and Nut.

10-Pack C9100 Compx National Mailbox Lock
#2

Value for Money
Mail Boss 7506 Mail Manager Curbside Locking Security Mailbox, Black,Large

9.5

Mail Boss

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Why we love it

The product is USPS approved, meaning it is suitable for residential use.

The product is made of 14 and 16 gauge galvanized welded steel, making it resistant to vandalism.

The product includes an innovative baffle door that accepts small parcels and packages, as well as a box of checks.

Main highlights

Key Features
Galvanized steel construction with anti-pry latch and high-security lock, deters mail theft and vandalism, accepts parcels and packages.

Ideal Use Cases
Perfect for residential use where mail safety is paramount, especially in areas prone to mail theft or those receiving small parcels frequently.

Customer Reviews Highlight
Most praised for its robust security features and durability, effectively preventing mail theft and ensuring peace of mind for users.
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How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
#3
Prime-Line S 4573 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)

9.4

PRIME-LINE

-36%

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Main highlights

WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with most brands of mailboxes.

REPLACEMENT LOCK – This multipurpose Prime-Line replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks. Features 5 cams and an NA-14 key

BUILT TO LAST – The mail box lock and key set is constructed of diecast, brass, steel, and stamped steel materials; the steel components come finished in a corrosion-resistant zinc-plated finish; the cylinder face comes in a nickel-plated finish

-36%
#4
Prime-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)

9.1

PRIME-LINE

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Why we love it

Easy to install with clear instructions.

Works with multiple mailbox brands.

Includes all necessary parts and two keys.

Main highlights

Easy Replacement Lock for Mailboxes
This Prime-Line replacement mailbox lock features 5 cams, Hudson 1003M key, and includes zinc-plated steel cams, brass pins, spring steel locking clip, and 2 keys.

Versatile Compatibility with Multiple Brands
Works with mailboxes from American Device, Auth-Florence, Bommer, and Miami-Carey, making it ideal for various mailbox replacements and security upgrades.

Highly Praised for Easy Installation
Customers appreciate the straightforward installation process, often completed in under 10 minutes with basic tools, and the lock’s smooth mechanism and secure locking feature.
#5
CompX USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys)

9.0

CompX

-24%

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Main highlights

Includes spring clip, mounting nut and (3) keys

Does not include cam/latch

C9100 operates clockwise

-24%
#6
2 PCS Mailbox Locks, Mailbox Lock 16 mm, Comes with 4 Different Lock Plates, Security Mailbox Lock, cam Lock, Lever Lock, Lever Lock for mailboxes, Cupboard Doors

8.8

QBXMY7

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Main highlights

Safe and reliable: the toolbox locks with keys provides you with sufficient security. Help protect privacy, assets and important materials and provide you with a safe personal space.

Premium material: the cam locks keyed alike is made of excellent metal material made of zinc alloy, which is wear-resistant, corrosion and rust resistant, sturdy and durable for long time use.

Easy to install: easy to install. Simply drill a hole in suitable place, insert lock head, fix tongue with fixing screw. Can be installed on metal, wood, doors, drawer panels, etc.
#7
Kenning 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)

8.5

Kenning

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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

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
#8
Replacement Tenant Mail Box Lock for 1570"F" Series CBU & 4C Mail Units by AF Florence

8.4

LEFVNPETS

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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

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
#9
Yqwwda 3 Pack Mailbox Locks, National L-1172C Mailbox Lock Replacement for C9100 Mailbox Key Lock with 3 Keys, Nickel Finish

8.3

Yqwwda

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Main highlights

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).
#10
Standard Lock, Vertical Mailbox, 2 Keys

8.2

Salsbury Industries

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Main highlights

Padlocks, Lockout/Tagout & Security Equipment

Manufacturer: SALSBURY INDUSTRIES

Country of manufacture: United States

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mailbox locks

CompX National C9100 USPS-L-1172C Mailbox Lock (Clockwise) (10 Pack)

9.7

Main highlights

Mail Boss 7506 Mail Manager Curbside Locking Security Mailbox, Black,Large

9.5

Why we love it

Main highlights

Prime-Line S 4573 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)

9.4

Main highlights

Prime-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)

9.1

Why we love it

Main highlights

CompX USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys)

9.0

Main highlights

2 PCS Mailbox Locks, Mailbox Lock 16 mm, Comes with 4 Different Lock Plates, Security Mailbox Lock, cam Lock, Lever Lock, Lever Lock for mailboxes, Cupboard Doors

8.8

Main highlights

Kenning 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)

8.5

Main highlights

Replacement Tenant Mail Box Lock for 1570"F" Series CBU & 4C Mail Units by AF Florence

8.4

Main highlights

Yqwwda 3 Pack Mailbox Locks, National L-1172C Mailbox Lock Replacement for C9100 Mailbox Key Lock with 3 Keys, Nickel Finish

8.3

Main highlights

Standard Lock, Vertical Mailbox, 2 Keys

8.2

Main highlights

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