--- product_id: 227442244 title: "Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue)" brand: "proven industries" price: "€ 254.20" currency: EUR in_stock: true reviews_count: 8 category: "Proven Industries" url: https://www.desertcart.hr/products/227442244-proven-industries-model-400xl-puck-lock-set-made-in-usa store_origin: HR region: Croatia --- # Unique anti-copy key system Aircraft-grade 6061 aluminum Pick & cut resistant design Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) **Brand:** proven industries **Price:** € 254.20 **Availability:** ✅ In Stock ## Summary > 🔐 Lock in peace of mind with Proven Industries’ toughest puck locks! ## Quick Answers - **What is this?** Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) by proven industries - **How much does it cost?** € 254.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/227442244-proven-industries-model-400xl-puck-lock-set-made-in-usa) ## Best For - proven industries enthusiasts ## Why This Product - Trusted proven industries brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tailored Fit:** Generous shackle dimensions (1 3/4" x 1 3/4" x 7/8") perfectly accommodate swivel hasps on enclosed trailer doors. - • **Proudly American:** Designed, researched, and manufactured in the USA—quality and security you can stand behind. - • **Unbreakable Armor:** Crafted from aircraft-grade 6061 aluminum for unmatched durability and corrosion resistance. - • **Invisible Fortress:** Hidden, fully-shielded shackles protect against bolt cutters and prying tools—security you can’t see but can trust. - • **Keyed for Convenience:** All keys are keyed alike, eliminating fumbling and streamlining your access with two keys per lock. ## Overview The Proven Industries Model 400XL Puck-Lock Set is a premium, heavy-duty security solution made from aircraft-grade aluminum, featuring a hidden shackle design that resists picking and cutting. Each lock includes a unique anti-copy key system and fits swivel hasps on enclosed trailer doors. Manufactured in the USA, this pack of two blue puck locks offers professional-grade protection for trailers and valuables. ## Description Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) - desertcart.com Review: Pricey but great quality - Pricey but work great. Perfect locks for my enclosed trailer. Very heavy duty perfect for rear door. Highly recommend Review: Excellent - Excellent. Works as advertised ## Features - HEAVY-DUTY PUCK LOCKS: It’s important to do everything you can to protect your belongings and your trailer from being stolen. Our strong and pick-resistant puck locks help keep your rear and side enclosed trailer doors secure. - TOUGH PUCK LOCKS: These padlock cylinders are constructed from aircraft-grade 6061 solid aluminum, so they’re resistant to picking and corrosion. Each lock features a hidden and fully-shielded shackle that protects against bolt cutters and prying tools. - UNIQUE KEY DESIGN: Our puck locks have a special key design that prevents anyone from picking them or making a copy of your lock keys. Each lock comes with 2 keys, and all keys are keyed alike for your convenience. - LOCK DIMENSIONS & SIZES: Each puck lock has a large opening on the back to accommodate for swivel hasps on an enclosed trailer door. The shackle opening measures 1 3/4" L x 1 3/4" W x 7/8" H and has a depth of 1 1/4". - PROVEN INDUSTRIES: We are dedicated to providing our customers with the most effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089XHNSG7 | | Best Sellers Rank | #35,535 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #90 in Keyed Padlocks | | Brand | Proven Industries | | Color | Blue | | Control Method | Touch | | Controller Type | Hand Control | | Customer Reviews | 4.3 4.3 out of 5 stars (196) | | Date First Available | June 9, 2020 | | Included Components | 2 puck locks and 2 keys per lock | | Item Weight | 2.18 pounds | | Item model number | 400XL | | Lock Type | Key Lock | | Manufacturer | Proven Locks | | Manufacturer Part Number | 400XL | | Material | Aluminum | | Number of Pieces | 2 | | Package Dimensions | 5.75 x 3.7 x 3.19 inches | | Recommended Uses For Product | securing enclosed trailer doors and protecting personal belongings | | Special Feature | Key Lock | | Special Features | Key Lock | | Style | Modern | | UPC | 729573594715 | ## Product Details - **Brand:** Proven Industries - **Lock Type:** Key Lock - **Material:** Aluminum - **Recommended Uses For Product:** securing enclosed trailer doors and protecting personal belongings - **Special Feature:** Key Lock ## Images ![Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) - Image 1](https://m.media-amazon.com/images/I/61nqmJIdu9L.jpg) ![Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) - Image 2](https://m.media-amazon.com/images/I/71qJW+d8I8L.jpg) ![Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) - Image 3](https://m.media-amazon.com/images/I/71hMZQxwY6L.jpg) ![Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) - Image 4](https://m.media-amazon.com/images/I/71XtvEHLeAL.jpg) ![Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) - Image 5](https://m.media-amazon.com/images/I/71j7wRpMD6L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Pricey but great quality *by M***E on July 28, 2025* Pricey but work great. Perfect locks for my enclosed trailer. Very heavy duty perfect for rear door. Highly recommend ### ⭐⭐⭐⭐⭐ Excellent *by I***. on November 30, 2025* Excellent. Works as advertised ### ⭐⭐⭐⭐⭐ Better security *by D***N on August 4, 2025* Wonderful Product that keeps my equipment secure. I love the fact that these done have the same key like the store bought ones do. These are random keys that no one else has. --- ## 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.hr/products/227442244-proven-industries-model-400xl-puck-lock-set-made-in-usa](https://www.desertcart.hr/products/227442244-proven-industries-model-400xl-puck-lock-set-made-in-usa) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-25*