--- product_id: 14203164 title: "Prime-Line S 4573 Mailbox Lock, 1 Set" brand: "prime-line" price: "65 zł" currency: PLN in_stock: true reviews_count: 10 category: "Prime Line" url: https://www.desertcart.pl/products/14203164-prime-line-s-4573-mailbox-lock-1-set store_origin: PL region: Poland --- # 5-pin tumbler security 5 versatile cams included Corrosion-resistant nickel finish Prime-Line S 4573 Mailbox Lock, 1 Set **Brand:** prime-line **Price:** 65 zł **Availability:** ✅ In Stock ## Summary > 🔒 Upgrade your mailbox security with style and ease—because your mail deserves the best! ## Quick Answers - **What is this?** Prime-Line S 4573 Mailbox Lock, 1 Set by prime-line - **How much does it cost?** 65 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/14203164-prime-line-s-4573-mailbox-lock-1-set) ## Best For - prime-line enthusiasts ## Why This Product - Trusted prime-line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Security You Can Trust:** 5-pin tumbler lock prevents unauthorized access and won’t let the key out unless locked. - • **DIY Friendly Installation:** Complete kit with keys, cams, clip, and hex nut—install in minutes with basic tools. - • **Versatile Fit, Zero Hassle:** Includes 5 cams to fit multiple mailbox styles—one lock, endless possibilities. - • **Built to Brave the Elements:** Durable diecast, brass, and steel with zinc and nickel plating for long-lasting outdoor protection. - • **Sleek & Professional Finish:** Nickel-plated cylinder face adds a polished look while resisting weather wear. ## Overview The Prime-Line S 4573 Mailbox Lock Set is a versatile, durable replacement lock designed to fit most residential and community mailboxes. Featuring a secure 5-pin tumbler mechanism, corrosion-resistant nickel and zinc finishes, and a complete installation kit with multiple cams and keys, it offers a professional, long-lasting solution for protecting your mail with effortless DIY installation. ## Description Secure your mail quickly and easily with Prime-Line’s S 4573 5-Pin Mailbox Lock and Key Set. Designed as a versatile replacement solution, this lock fits most standard residential, cluster, and community mailboxes, making it ideal for replacing lost, damaged, or worn-out locks. With multiple cam options included, this set eliminates the hassle of finding the exact replacement part, offering flexibility for a wide range of mailbox styles. Built for durability and long-term performance, the lock is constructed from a combination of diecast, brass, steel, and stamped steel components. The steel parts feature a corrosion-resistant zinc-plated finish, while the cylinder face is finished in nickel plating for added protection and a clean, professional appearance. This strong construction helps ensure reliable mailbox security in outdoor conditions. The 5-pin tumbler design enhances security by helping protect against unauthorized access. A built-in safety feature prevents the key from being removed when the lock is in the unlocked position, reducing the risk of accidentally leaving your mailbox unsecured. Installation is simple and can be completed with basic tools. The set includes one lock, five different cams, a spring steel locking clip, a hex securing nut, and two keys (NA-14 keyway), providing everything needed for a quick and convenient installation. Always review the line drawing to confirm compatibility with your mailbox before purchase. Review: Easy install, smooth lock! - While opening my mailbox one day, I broke the key off in the lock. The lock was old and janky anyway; I ordered one of these to replace it with. I chose this lock because the key looks the same as the key from the old lock. For lock replacement, installation was simple: simply remove the old lock, match the locking arm on the old mailbox lock to one of the five included with the set, and fasten the lock to the mailbox using the two included nuts. (A screw was alluded to in the instructions, but the actual device uses a nut instead.) It took about five minutes, including the walk to the box from my apartment and back. As compared to the old, dirty lock that this one replaced, it opens much more smoothly and reliably yet still feels very securely fastened to the door of the box. That said, I am not terribly concerned about the absolute security of this lock: if someone wanted to steal my mail, they would be much more likely to jimmy open the postal lock that opens the whole box at once. This is an easy DIY solution to a common problem that locksmiths or the post office would have charged dozens of dollars to fix. Review: Quick fix - Well made ## Features - Replacement Lock: Suitable for replacing lost or broken mailbox locks; includes 5 cams for versatile fit options - Fits Multiple Mailboxes: Compatible with many residential, cluster, and community mailbox styles - Durable Construction: Made of diecast, brass, and steel with zinc-plated and nickel finishes for corrosion resistance - Enhanced Security Design: 5-pin tumbler helps protect mail; key cannot be removed unless lock is secured - Complete Installation Kit: Includes lock, 2 keys, cams, clip, and hex nut; installs with basic tool - Counter-Clockwise Operation: Features NA-14 keyway with 90-degree rotation that opens counter-clockwise for secure mailbox access - Professional Finish: Nickel-plated cylinder face provides a clean, professional appearance while offering additional protection against outdoor elements ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Key Unlock | | Brand | PRIME-LINE | | Color | Nickel | | Controller Type | Hand Control | | Finish Types | Nickel Finish,Nickel-plated | | Item Dimensions | 1.25 x 3.81 x 4.94 inches | | Item Weight | 3.84 ounces | | Item dimensions L x W x H | 1.25 x 3.81 x 4.94 inches | | Lock Type | Key Lock | | Material | Brass , Nickel | | Material Type | Brass, Nickel | | Recommended Uses For Product | Securing mailboxes | | Shape | Round | | Special Feature | Key Unlock | | Style Name | Modern | ## Product Details - **Brand:** PRIME-LINE - **Item dimensions L x W x H:** 1.25 x 3.81 x 4.94 inches - **Lock Type:** Key Lock - **Material:** Brass, Nickel - **Special Feature:** Key Unlock ## Images ![Prime-Line S 4573 Mailbox Lock, 1 Set - Image 1](https://m.media-amazon.com/images/I/71r5Fqys3FL.jpg) ![Prime-Line S 4573 Mailbox Lock, 1 Set - Image 2](https://m.media-amazon.com/images/I/71dpezXrvqL.jpg) ![Prime-Line S 4573 Mailbox Lock, 1 Set - Image 3](https://m.media-amazon.com/images/I/61k-gnI6OKL.jpg) ![Prime-Line S 4573 Mailbox Lock, 1 Set - Image 4](https://m.media-amazon.com/images/I/61YRTeYG6QL.jpg) ![Prime-Line S 4573 Mailbox Lock, 1 Set - Image 5](https://m.media-amazon.com/images/I/71-qjOG8YgL.jpg) ## Questions & Answers **Q: Will this replace usps-l-1172c?** A: It is not an exact replace but is an alternative mailbox lock. **Q: Are there blank keys available for this lock?** A: The lock takes a National keyway blank NA-14. **Q: What is the diameter of the lock cylinder? most other cylinders are 5/8" which are too big for the mailbox hole...?** A: This item is 3/4". **Q: how many keys are included?** A: Two keys are included. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy install, smooth lock! *by A***R on September 18, 2019* While opening my mailbox one day, I broke the key off in the lock. The lock was old and janky anyway; I ordered one of these to replace it with. I chose this lock because the key looks the same as the key from the old lock. For lock replacement, installation was simple: simply remove the old lock, match the locking arm on the old mailbox lock to one of the five included with the set, and fasten the lock to the mailbox using the two included nuts. (A screw was alluded to in the instructions, but the actual device uses a nut instead.) It took about five minutes, including the walk to the box from my apartment and back. As compared to the old, dirty lock that this one replaced, it opens much more smoothly and reliably yet still feels very securely fastened to the door of the box. That said, I am not terribly concerned about the absolute security of this lock: if someone wanted to steal my mail, they would be much more likely to jimmy open the postal lock that opens the whole box at once. This is an easy DIY solution to a common problem that locksmiths or the post office would have charged dozens of dollars to fix. ### ⭐⭐⭐⭐⭐ Quick fix *by T***I on May 11, 2025* Well made ### ⭐⭐⭐⭐ a good strong replacement lock *by G***. on October 7, 2024* these prices can get way up there, I looked at several before I got this on Amazon this is a strong replacement lock, seems to be working well, and secure ## Frequently Bought Together - 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) - 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) - Prime-Line MP4945 Mail Box Lock, 5-Cam, 5-Pin, 13/16 In. Threaded, Counter-Clockwise (Single Pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/14203164-prime-line-s-4573-mailbox-lock-1-set](https://www.desertcart.pl/products/14203164-prime-line-s-4573-mailbox-lock-1-set) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-08-14*