CompX National USPS-L-1172C National Mailbox Lock C9100 Lock With 3 Keys Gold Color
Why you'll like it
- Official Postal Compliance — Meets strict USPS-L-1172C standards designed specifically for centralized cluster box units and 4C wall mailboxes.
- Smooth Operation — Features a reliable 90-degree clockwise rotation mechanism for seamless locking and unlocking performance.
- Complete Kit Inclusion — Comes equipped with three matching keys, a spring-steel mounting clip, and a secure rear retention nut.
- Heavy-Duty Durability — Constructed from robust metal materials to withstand regular daily use and provide long-lasting security.
Product details
Description
Upgrade or replace your cluster mailbox security with the authentic CompX National USPS-L-1172C C9100 Mailbox Lock. Engineered to meet official United States Postal Service specifications, this heavy-duty metal pin-tumbler cam lock provides reliable security for centralized and 4C cluster box units.
Designed with a 90-degree clockwise rotation mechanism from the locked position, it ensures smooth operation for everyday mail retrieval. The complete replacement kit includes the durable lock cylinder along with three matching keys, a spring-steel mounting clip, and a rear retention nut for straightforward tool-less or quick housing installation.
Ideal for property managers, homeowners, and community mailbox maintenance, this precision-crafted lock delivers trusted durability and a secure fit for standard postal-style doors.
How to use
- Verify that your existing mailbox setup requires a clockwise rotation lock matching the USPS-L-1172C specification.
- Attach any required tailpiece or cam, insert the lock into the 4C door housing using the spring clip and mounting nut, and test the mechanism with the provided keys before final locking.
Ingredients
Heavy-duty hardened metal alloy body, precision brass pin-tumbler core, spring-steel mounting clip.
As printed by the brand. Check the pack label if you have an allergy.
Specifications
| Brand | COMPX NATIONAL |
|---|---|
| UPC | 049793391063 |
| Ships from | USA (sourced directly), checked in Navi Mumbai |
| Sold by | Dropy.in |
Ratings & reviews
From our customers
FAQs
How do I replace my USPS mailbox lock?
To replace your lock, remove the old retention clip and cam from the inside of the mailbox door. Insert the new CompX National C9100 lock into the housing, attach the appropriate tailpiece or cam, and secure it firmly using the provided spring clip and mounting nut.
What rotation direction does this mailbox lock use?
This specific C9100 model operates with a 90-degree clockwise rotation mechanism from the locked position to the unlocked position. Verify your existing door configuration before installation to ensure compatibility.
Does this lock include keys and mounting hardware?
Yes, each lock kit includes three matching keys, a spring-steel mounting clip, and a rear retention nut for a secure and straightforward installation process.
Are these genuine USA-imported CompX National locks available in India?
Yes, Dropy sources this authentic CompX National mailbox lock directly from the USA to ensure genuine quality and dependable performance for your security needs in India.
Is this lock compatible with 4C cluster mailbox units?
Yes, it is specifically designed as a standard replacement lock for 4C cluster box units and centralized postal boxes adhering to official standards.
How long will delivery take?
Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.
Is cash on delivery available?
Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.
Are your products genuine?
Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.
What if my order arrives damaged or wrong?
Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.
Is delivery free?
Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.