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The 8 Best mailbox locks of 2024

Are you trying to find mailbox locks among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling mailbox locks on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 16 hours of research and did 30 mailbox locks tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best mailbox locks you can buy today

No. 1
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)
  • 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 Hudson 1003M key
  • WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with several brands of mailboxes, including: American Device, Auth-Florence, Bommer, and Miami-Carey.
  • INCLUDES – Replacement lock kit includes a total of 5 zinc-plated steel cams, brass pins, a spring steel locking clip and 2 keys.
  • LOCKING SECURITY FEATURE – This lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.
  • NOTE – This mailbox lock unlocks by turning the included keys in a in the counter-clockwise direction and has a retaining hex nut and retaining clip
SaleNo. 2
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)
  • 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
  • WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with most brands of mailboxes.
  • 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
  • LOCKING SECURITY FEATURE – This lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.
  • NOTE – This mailbox lock unlocks by turning the included keys in a in the counter-clockwise direction and has a retaining hex nut and retaining clip
SaleNo. 3
Compx National Mailbox Lock 4C Style Clockwise
  • Stainless steel plug
  • 12 degree taper on cylinder head
  • Now able to accommodate up to 3/16" cam
  • Drain holes on the bottom of the cylinder
  • Will include spring clip, mounting nut and (3) keys
No. 4
Prime-Line MP4526 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Clockwise with 90º Rotation, Nickel Finish (1 Set)
  • 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 NA14 key
  • WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with several brands of mailboxes, including: Auth-Electric, Bommer, Cutler-Federal, Florence and Superior.
  • INCLUDES – Replacement lock kit includes a total of 5 zinc-plated steel cams, brass pins, a spring steel locking clip and 2 keys.
  • LOCKING SECURITY FEATURE – This lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.
  • NOTE – This mailbox lock unlocks by turning the included keys in a in the clockwise direction and features a dust cover and a retaining clip
SaleNo. 5
Replacement Tenant Mail Box Lock for 1570"F" Series CBU & 4C Mail Units by AF Florence
  • 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
  • Note: Mail unit brand (e;g;, "AF Florence"") is usually noted on nameplate attached to mail unit
No. 6
24 Set Cabinet Locks with Keys Cabinet Cam Lock Set, Keyed Alike 5/8'' Cylinder Length Fits on 0.4'' Max Panel Thickness for Secure Drawer Mailbox RV Storage Tool Box Replacement Lock Kit, Zinc Alloy
  • File Cabinet Lock Kit: you will get 24 pcs mailbox lock replacement, 48 pcs lock plates (2 types of lock plates included) and 24 pcs keys, it will satisfy your one time purchase needs
  • 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
  • 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
  • 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
  • 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
No. 7
Prime-Line S 4531 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)
  • REPLACEMENT LOCK – This multipurpose Prime-Line replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks. Features 9 cams and a NA-14 key
  • WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with several brands of mailboxes
  • INCLUDES – Replacement lock kit includes a total of 5 zinc-plated steel cams, brass pins, a spring steel locking clip and 2 keys.
  • LOCKING SECURITY FEATURE – This lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.
  • NOTE – This mailbox lock unlocks by turning the included keys in a in the counter-clockwise direction and has a retaining clip
No. 8
Keyed Different, goldenwarm Mailbox Cam Lock 5/8' Cylinder, Cabinet Cam Lock Secured File Cabinet Lock with Keys Toolbox Lock Zinc Alloy Drawer Lock and Key, Satin Nickel Finish, 1 Pack
142 Consomer Reviews
Keyed Different, goldenwarm Mailbox Cam Lock 5/8" Cylinder, Cabinet Cam Lock Secured File Cabinet Lock with Keys Toolbox Lock Zinc Alloy Drawer Lock and Key, Satin Nickel Finish, 1 Pack
  • Basic Info: Zinc Alloy Material with Satin Nickel Finish, 5/8" cylinder length, 3/4" diameter, it can fit maximum 0.55'' panel thickness.
  • Signature Features: The surface is specifically manufactured with Electroplating Coatings. They are tough enough to use for long time. The Keyed-Different feature also make sure the security of files, letters and other documents you want to lock with secret and privacy.
  • Easy to Adjust: Follow the instruction shown in the picture, with the hardware we provided in the package, you can easily install the cam lock within few minutes.
  • Package Inclusion: A set of lock comes with 1 cylinder, 3 latches and 2 keys.
  • One-Year Warranty: We only sell the great product for reasonable price. You can Enjoy the benefits of our proud customer services, if you have any issue or inquiry, please feel free to contact us ANYTIME!
SaleNo. 9
SaleNo. 10
Prime-Line MP4530 National Keyway Mail Box Lock with 9 Cams and 5 Pin (Single Pack)
  • Diecast construction
  • Nickel plated face
  • Spring clip installation
  • Spring steel locking clip
  • Can eliminate stocking of individual locks
  • Clockwise rotation
  • An adjustable wrench will be required for installation
  • Please refer to the line art drawing for dimensions and compare with your needs before ordering
No. 12
Prime-Line MP4945 Mail Box Lock, 5-Cam, 5-Pin, 13/16 In. Threaded, Counter-Clockwise (Single Pack)
  • Diecast construction
  • Nickel plated face
  • Counter-clockwise rotation
  • Spring steel locking clip
  • Can eliminate stocking of individual locks
SaleNo. 13
Hecfu 1 Pack Cabinet Locks with Keys, 5/8" Cam Lock keyed Alike, Secure Drawer Mailbox File RV Storage Tool Box Locks Replacement Set, Zinc Alloy
  • ✔️PREMIUM QUALITY: Cam locks are precision cast from upgraded chrome-plated zinc alloy material, chrome-plated surface, waterproof and rust-proof, durable and durable, it is the best lock replacement kit for cabinets, mailboxes, RV compartments, toolbox locks.
  • ✔️PRODUCT SIZE: Different lengths of cam locks are suitable for different thicknesses of door panels. Before purchasing, please check the size introduction in figure 2 and choose the right size! Cam Lock body length: 5/8"(16mm), door thickness ≤ 0.48"(12.19mm), keyhole diameter≈ 0.7"(18mm), two different shaped plate 1.83"(46.6mm) and 1.38"(35mm). Cabinet locks with keys are widely used in mailbox, toolbox, filing cabinets, RV and camper doors.
  • ✔️EASY TO INSTALL: Provide extra security for your important small items on metal, door panels or drawer panels less than 0.48"(12.19mm) thick by referring to the installation diagrams. cabinet locks with keys are installed on tool boxes or kitchen knife cabinets, Gives you the peace of mind to let your kids play freely.
  • ✔️WHAT YOU GET: 1 pcs high quality chrome plated zinc alloy cam locks, each lock contains 1 main lock body, 1 hex nut, 2 same keys, 2 different sizes of lock plates, 1 screw fastener; key support Use at any angle, open the lock at 90 degrees, without keeping the key, you can take out the key when locking and unlocking.
  • ✔️CONVENIENT AND PRACTICAL: If you need multiple locks with the same key, you can order multiple sets. All cam locks in the order contain the same key control, and any key can open all locks.
SaleNo. 15
Prime-Line MP4300 Mail Box Lock Cutler-Fed with Dust Cover, Nickel (Single Pack)
  • Fits Cutler Federal exterior residential gang boxes
  • Keyway features spring-loaded dust cover
  • Spring clip installation
  • 5-Pin tumbler
  • 1-9/16 inch long cam
  • Please refer to the line art drawing for dimensions and compare with your needs before ordering
No. 16
Prime-Line MP4048 Mail Box Lock, 1/4 In. Throw, Steel, Brass Plated (Single Pack)
  • Steel construction
  • Fits on Auth, United and Florence mailboxes
  • Brass plated finish
  • Fits old style apartment mail boxes
  • 1/4 inch bolt throw
SaleNo. 17
Prime-Line S 4315 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Clockwise with 90º Rotation, Nickel Finish (1 Set)
  • REPLACEMENT LOCK – This multipurpose Prime-Line replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks. Features 1 cam and an NA-14 key
  • WORKS FOR SEVERAL BRANDS – This replacement mailbox lock work with Florence and C-8715 mailboxes
  • INCLUDES – Replacement lock kit includes a total of 5 zinc-plated steel cams, brass pins, a spring steel locking clip and 2 keys.
  • LOCKING SECURITY FEATURE – This lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.
  • NOTE – This mailbox lock unlocks by turning the included keys in a in the clockwise direction and a retaining clip
No. 18
Cabinet Locks with Keys, 5/8" Cam Locks Keyed Alike, Tool Box Lock for Truck Pickup Mailbox Toolbox Lock Replacement Set, Zinc Alloy (3 Pack, 5/8 Inch)
  • 【READ SIZE GUIDANCE BEFORE PURCHASE】Please measure the locking distance & your storage door thickness before purchase, Correct Lock Size is equal to the locking distance (measure from the front of the door face to the latch locking-up position). Cam locks keyed alike come as full set with 3 different thickened lock arms per lock (1 pcs standard& 2 pcs for free) for your different installation need.
  • 【PREMIUM QUALITY】Cylinnda Cabinet Locks are made of premium zinc alloy solid metal with chrome finish, waterproof and rustproof for long service life. RV storage locks keep your valuables safe and help you travel worry free with loved ones.
  • 【UPGRADED SECURITY & MORE SPARE KEYS】Cylinnda RV Cam Locks are better security than the standard OEM key locks, you’ll get your own unique keys and all keys are keyed alike in each package. Cam locks keyed alike means one key can open all locks in the same set. If multiple sets are ordered at the same time, all locks in the order will have same key code, any key can open all locks.
  • 【WIDE APPLICATION】Cabinet Cam Locks work for a standard mounting hole of ¾" (0.72”) inch diameter. Hole diameter smaller than 3/4" will work. Installation is super easy and quick, turn 90 degree clockwise to lock the door, key is removable at unlocked position. Widely used as replacement for RV storage locks, RV compartment locks, tool box lock, Cabinets and Drawer locks as well as your old/broken locks. If you have an old lock, compare datas to our pictures to get correct size.
  • 【SATISFACTION GUARANTEE】Customer satisfaction is our top priority, if you’re not satisfied with your purchase for any reason, or if you have any questions, please contact us. We provide 30-day money back, lifetime warranty and 24H/7D online friendly customer service. We’ll try our best to meet your need.
No. 19
Corgre Cylinder Cam Cylinder Lock Cabinet Keyed Cam Locks Mailbox Cabinet Tool Box Lock 12/19 (16mm) (2Pack)
506 Consomer Reviews
Corgre Cylinder Cam Cylinder Lock Cabinet Keyed Cam Locks Mailbox Cabinet Tool Box Lock 12/19 (16mm) (2Pack)
  • Material: zinc alloy.
  • Keyed Alike:1 key can open all locks.
  • Package includes: 2 cam lock and 4 keys.
  • Installation: hole 18MM.
  • Be applicable: Drawer Locks, Kitchen Locks,Toolbox lock ,Letter box more wardrobe file cabinet clothes shoe Locks.
No. 20
Compx National Pin Tumbler Lock, Bright Nickel
  • Padlocks, Lockout/Tagout & Security Equipment
  • Country of manufacture: United States
  • Manufacturer: COMPX NATIONAL

How to choose a good mailbox locks

Does the idea of finding a fantastic mailbox locks make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in mailbox locks. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top mailbox locks products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top mailbox locks on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top mailbox locks brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top mailbox locks based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the mailbox locks were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good mailbox locks, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your mailbox locks.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting mailbox locks for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our mailbox locks. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what mailbox locks should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on mailbox locks.