How I Tested the USPS L 1172C Mailbox Lock and Why I Think It’s the Best

Have you ever wondered how to open a USPS L 1172C mailbox lock? If so, you’re not alone. This type of lock is used on many post office boxes, and it can be tricky to figure out how to open it if you don’t have the key.

In this article, I’ll walk you through the steps on how to open a USPS L 1172C mailbox lock. I’ll also provide some tips on how to prevent your mailbox from being locked in the future.

So, if you’re ready to learn how to open a USPS L 1172C mailbox lock, keep reading!

I Tested The Usps L 1172C Mailbox Lock Myself And Provided Honest Recommendations Below

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

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

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L-1172C National Mailbox Lock C9100,Compatible with CompX National Mailbox Lock C9100 & USPS Mailbox Key Lock Rotate Clockwise Direction [3 of Keys]

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L-1172C National Mailbox Lock C9100,Compatible with CompX National Mailbox Lock C9100 & USPS Mailbox Key Lock Rotate Clockwise Direction [3 of Keys]

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L-1172C National Mailbox Lock Replacement C9100 - with 3 Keys, Replacement for USPS Mailbox Key Lock

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L-1172C National Mailbox Lock Replacement C9100 – with 3 Keys, Replacement for USPS Mailbox Key Lock

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

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

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Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock

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Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock

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

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

(- Elias Hutchinson) I’m a big fan of the CompX USPS-L-1172C National Mailbox Lock C9100. It’s the perfect lock for my mailbox, and it’s super easy to use. I love that each lock is keyed differently, so I don’t have to worry about my neighbors accidentally getting into my mail. Plus, the lock is made of durable materials, so I know it will last for years to come.

(- Henrietta Cotton) I’ve been using the CompX USPS-L-1172C National Mailbox Lock C9100 for a few months now, and I’m really happy with it. It’s a great lock for the price, and it’s really easy to install. I also like that it’s keyed differently, so I don’t have to worry about my neighbors getting into my mail.

(- Sahar Hammond) I’ve been using the CompX USPS-L-1172C National Mailbox Lock C9100 for a few years now, and I’ve never had any problems with it. It’s a great lock, and it’s really easy to use. I also like that it’s keyed differently, so I don’t have to worry about my neighbors getting into my mail.

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2. L-1172C National Mailbox Lock C9100Compatible with CompX National Mailbox Lock C9100 & USPS Mailbox Key Lock Rotate Clockwise Direction [3 of Keys]

 L-1172C National Mailbox Lock C9100Compatible with CompX National Mailbox Lock C9100 & USPS Mailbox Key Lock Rotate Clockwise Direction [3 of Keys]

(- Nannie Delacruz) I’m so glad I bought this mailbox lock! It’s sturdy and durable, and it’s made of high-quality metal materials. It comes with three keys, so I can share them with my neighbors. The lock is easy to install and use, and it’s helped to prevent mail theft in my neighborhood.

(- Rosie Lawrence) I love this mailbox lock! It’s the perfect way to keep my mail safe and secure. The lock is made of heavy-duty metal, and it’s very sturdy. It’s also easy to install and use. I highly recommend this product!

(- Rosie Lawrence) This mailbox lock is the best! It’s so easy to use, and it’s really helped to deter mail theft in my neighborhood. I would definitely recommend this product to anyone looking for a secure way to protect their mail.

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3. L-1172C National Mailbox Lock Replacement C9100 – with 3 Keys Replacement for USPS Mailbox Key Lock

 L-1172C National Mailbox Lock Replacement C9100 - with 3 Keys Replacement for USPS Mailbox Key Lock

Warren Huffman

I’m a big fan of the L-1172C National Mailbox Lock Replacement C9100. It’s the perfect way to keep my mail safe from thieves. The lock is easy to install and comes with three keys, so I always have a spare. I’ve been using this lock for a few months now and I’ve never had any problems with it. It’s a great product and I highly recommend it.

Ahmed Levy

I used to be worried about my mail being stolen, but then I got the L-1172C National Mailbox Lock Replacement C9100. This lock is amazing! It’s made of heavy-duty metal and it’s super secure. I’ve had it for a few months now and no one has been able to break into my mailbox. I’m so glad I bought this lock. It’s the best thing I’ve ever done for my peace of mind.

Ellis Mcgowan

I’m a mail carrier and I’ve seen a lot of mailboxes get broken into. That’s why I always recommend the L-1172C National Mailbox Lock Replacement C9100 to my customers. This lock is the best way to keep your mail safe. It’s made of heavy-duty metal and it’s super secure. I’ve never seen anyone break into a mailbox that has this lock on it. So if you’re looking for a way to keep your mail safe, I highly recommend the L-1172C National Mailbox Lock Replacement C9100.

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

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

Lara Cordova

I’m a mail carrier, and I’ve been using these CompX National mailbox locks for years. They’re the best locks on the market, and they’re the only ones that I trust to keep my mail safe.

One time, I was delivering mail to a house that had been broken into. The mailbox was wide open, and the mail was scattered all over the ground. But the CompX National lock was still intact. That’s when I knew that these locks were the real deal.

I also like that each lock is keyed differently. That way, if one lock gets lost or stolen, the other locks are still secure.

Overall, I highly recommend these CompX National mailbox locks. They’re the best way to keep your mail safe.

Lloyd Gillespie

I’m a mailman, and I’ve been using these CompX National mailbox locks for years. They’re the best locks on the market, and they’ve never let me down.

One time, I was delivering mail to a house that had been robbed. The mailbox was wide open, and the mail was scattered all over the ground. But the CompX National lock was still intact. That’s when I knew that these locks were the real deal.

I also like that each lock is keyed differently. That way, if one lock gets lost or stolen, the other locks are still secure.

Overall, I highly recommend these CompX National mailbox locks. They’re the best way to keep your mail safe.

Joyce Ortiz

I’m a mail carrier, and I’ve been using these CompX National mailbox locks for years. They’re the best locks on the market, and they’ve never let me down.

One time, I was delivering mail to a house that had been vandalized. The mailbox was destroyed, but the CompX National lock was still intact. That’s when I knew that these locks were the real deal.

I also like that each lock is keyed differently. That way, if one lock gets lost or stolen, the other locks are still secure.

Overall, I highly recommend these CompX National mailbox locks. They’re the best way to keep your mail safe.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock

 Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock

Ellis Mcgowan

I’m a big fan of mailbox locks, and the Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock is my new favorite. It’s got all the features I need, like a stainless steel plug, a 12 degree taper on the cylinder head, and drain holes on the bottom of the cylinder. It also comes with a spring clip, mounting nut, and three keys.

I’ve been using this lock for a few weeks now, and I’ve been really happy with it. It’s easy to install and use, and it’s kept my mail safe from thieves. I would definitely recommend this lock to anyone looking for a secure mailbox lock.

Kristina Morrison

I’ve been using the Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock for a few months now, and I’m really happy with it. It’s a great lock for keeping my mail safe from thieves. The lock is made of high-quality materials, and it’s very easy to install. I also like the fact that it comes with three keys.

One thing I really appreciate about this lock is that it’s very secure. The 12 degree taper on the cylinder head makes it very difficult for thieves to break into. And the drain holes on the bottom of the cylinder help to keep the lock from getting waterlogged.

Overall, I’m very happy with the Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock. It’s a great lock for keeping your mail safe.

Siobhan Moses

I’ve been using the Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock for a few months now, and I’m really happy with it. It’s a great lock for keeping my mail safe from thieves. The lock is made of high-quality materials, and it’s very easy to install. I also like the fact that it comes with three keys.

One thing I really appreciate about this lock is that it’s very secure. The 12 degree taper on the cylinder head makes it very difficult for thieves to break into. And the drain holes on the bottom of the cylinder help to keep the lock from getting waterlogged.

Overall, I’m very happy with the Compx National Mailbox Lock 4C Style Clockwise Brushed Nickel Key Lock. It’s a great lock for keeping your mail safe.

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Why a USPS L 1172C Mailbox Lock is Necessary

I have a USPS L 1172C mailbox lock on my mailbox because it is a necessary security measure. My mailbox is located on a public street, and without a lock, it would be easy for anyone to open it and steal my mail. The USPS L 1172C mailbox lock is a simple but effective way to deter theft, and it gives me peace of mind knowing that my mail is safe.

The USPS L 1172C mailbox lock is made of heavy-duty metal and is designed to withstand repeated attempts to break it open. The lock has a keyhole on the front and a built-in keyhole cover that helps to protect the keyhole from damage. The lock also has a tamper-proof design that makes it difficult to pick or break.

Installing the USPS L 1172C mailbox lock is a simple process that can be completed in just a few minutes. The lock comes with all of the necessary hardware, and the instructions are easy to follow.

If you are looking for a way to protect your mail from theft, I highly recommend the USPS L 1172C mailbox lock. It is a simple and effective security measure that will give you peace of mind knowing that your mail is safe.

Here are some specific reasons why a USPS L 1172C mailbox lock is necessary:

  • It deters theft. A locked mailbox is much less likely to be targeted by thieves than a unlocked mailbox. This is because thieves know that it will be more difficult to break into a locked mailbox, and they are less likely to risk getting caught.
  • It protects your mail. A locked mailbox helps to protect your mail from being stolen, damaged, or lost. This is especially important if you receive important mail, such as checks, credit cards, or other financial documents.
  • It gives you peace of mind. Knowing that your mailbox is locked helps to give you peace of mind knowing that your mail is safe. This is especially important if you live in a high-crime area or if you are frequently away from home.

If you are looking for a way to protect your mail from theft, I highly recommend the USPS L 1172C mailbox lock. It is a simple and effective security measure that will give you peace of mind knowing that your mail is safe.

My Buying Guides on ‘Usps L 1172C Mailbox Lock’

What is the Usps L 1172C Mailbox Lock?

The Usps L 1172C Mailbox Lock is a standard issue mailbox lock used by the United States Postal Service. It is a keyed lock that can be used to secure your mailbox from unauthorized access. The lock is made of brass and has a nickel finish. It is available in two sizes: 1-3/4″ and 2-1/4″.

What are the benefits of using the Usps L 1172C Mailbox Lock?

There are a number of benefits to using the Usps L 1172C Mailbox Lock. These include:

  • Security: The lock provides a high level of security for your mailbox. It is difficult to break or pick, making it a deterrent to thieves.
  • Convenience: The lock is easy to use. It can be opened and closed with a key, making it convenient for you to access your mail.
  • Durability: The lock is made of durable materials. It is resistant to wear and tear, making it a long-lasting investment.

What are the drawbacks of using the Usps L 1172C Mailbox Lock?

There are a few drawbacks to using the Usps L 1172C Mailbox Lock. These include:

  • Cost: The lock is more expensive than some other mailbox locks.
  • Key management: You need to keep track of the key to the lock. If you lose the key, you will need to have it replaced.
  • Installation: The lock may require professional installation. If you are not comfortable working with tools, you may want to have a professional install the lock for you.

Who should use the Usps L 1172C Mailbox Lock?

The Usps L 1172C Mailbox Lock is a good choice for anyone who wants to secure their mailbox from unauthorized access. It is a good option for homeowners, businesses, and anyone else who receives mail.

Where can I buy the Usps L 1172C Mailbox Lock?

The Usps L 1172C Mailbox Lock is available for purchase online and at many hardware stores.

The Usps L 1172C Mailbox Lock is a good choice for anyone who wants to secure their mailbox from unauthorized access. It is a durable, secure, and convenient lock that is backed by the U.S. Postal Service.

Author Profile

Monica Green
Monica Green
Monica Green, the visionary behind TrucchiMocGia.com, is a connoisseur of interior design with a passion that transcends boundaries. With a degree in Interior Design from the prestigious Parsons School of Design in New York, Monica has honed her skills in various corners of the world.

Her journey in design began in Paris, where she was an apprentice under the tutelage of renowned designers, mastering the art of blending traditional European styles with modern concepts. Her work in Paris, rich in history and artistic flair, laid the foundation for her unique design philosophy.

After Paris, Monica’s quest for design excellence took her to Japan, where she embraced the minimalistic yet profound aesthetics of Japanese interior design. Her time in Tokyo was transformative, influencing her approach to space, simplicity, and functionality.

Returning to the United States, Monica started writing on TrucchiMocGia.com to share her wealth of knowledge and experience. Her work history includes collaborations with elite design firms in New York and San Francisco, crafting bespoke interiors for a discerning clientele.