Lock It and Leave It.
Protect your trailer with the unparalleled strength and durability of a custom-fit trailer coupler lock.
“Great quality and fits perfect.”
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“By far the best value I found – highly recommended.”
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“… shipped fast… very high quality.”
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**FREE SHIPPING FOR ALL ORDERS IN THE 48 CONTIGUOUS UNITED STATES**
THE S5 TRAILER LOCK COLLECTION
When it comes to protecting your property, our custom-fit, structural steel trailer coupler locks are unmatched in design and quality.
OUR CUSTOM-FIT DESIGN
While most mass-produced trailer locks can be cut or sledgehammered off in under 20 seconds due to weaknesses in their one-fits-many design, S5 Locks are carefully crafted to account for the unique design of a single trailer coupler.
In doing so, we virtually eliminate weak points in our locks that potential thieves could exploit.
OUR TOP-QUALITY COMPONENTS
Additionally, we integrate a puck-style lock mechanism and construct each lock out of structural steel (most 1/4″ thick). This approach provides additional strength to deter thieves – if the lock’s presence alone isn’t enough.
The locks subsequently undergo powder coating to establish a protective barrier against corrosion and the elements – in addition to deterring potential thieves!
THE S5 TRAILER LOCK COLLECTION
When it comes to protecting your property, our custom-fit, structural steel trailer coupler locks are unmatched in quality and design.
OUR CUSTOM-FIT DESIGN
While most mass-produced trailer locks can be cut or sledgehammered off in under 20 seconds due to weaknesses in their one-fits-many design, S5 Locks are carefully crafted to account for the unique design of a single trailer coupler.
In doing so, we virtually eliminate weak points in our locks that potential thieves could exploit.
OUR TOP-QUALITY COMPONENTS
Additionally, we integrate a puck-style lock mechanism and construct each lock out of structural steel (most 1/4″ thick). This approach provides additional strength to deter thieves – if the lock’s presence alone isn’t enough.
The locks subsequently undergo powder coating to establish a protective barrier against corrosion and the elements – in addition to deterring potential thieves!
“I stumbled across these on Facebook while looking for something really secure but not crazy expensive. Called the maker to make sure which would fit my trailer and he was very helpful. Decided to take a chance and order one.
Extremely happy with it. It is beautifully made, solid THICK steel and nicely welded and finished. It would take hours to cut through it and a crowbar is not gonna work. Seems to me to be at least the equal of, if not better than the two “big name” similar locks and at a much more attractive price… By far the best value I found – highly recommended.“
Rupert M. (Facebook Review)
CUSTOM-FIT DESIGN
ONE KEY FOR ALL LOCKS
SAME DAY SHIPPING
ECO-FRIENDLY PACKAGING
MADE IN THE USA
Our trailer locks boast lasting durability. Firstly, we custom-design each S5 Lock to perfectly match the unique shape of an individual trailer coupler, with most locks tailored to fit just one make or model. This approach delivers enhanced security compared to easily-removed generic coupler locks, which can be applied to a variety of trailers.
Moreover, we construct our lock bodies using sturdy, structural steel (most 1/4″ thick), integrating a puck-style lock mechanism to maximize security. The locks subsequently undergo powder coating to establish a protective barrier against corrosion and the elements – in addition to deterring potential thieves!
PURCHASE ASSISTANCE
For assistance with purchases, simply get in touch through our contact form. Then, one of our representatives will follow up to identify the ideal coupler lock for your trailer.
Need more than one lock? We’re happy to key every trailer coupler lock you purchase the same upon request for ease of access to your property.
Most orders are shipped same day or the next business day.
Any order placed after 2PM CST on Friday will be shipped no earlier than the following Monday (excluding holidays).
If an item is back ordered this will be communicated to you by our team and typically is resolved within 2 weeks.
Shipping in the lower 48 US States is via UPS or FedEx. USPS is used only when absolutely required.
Direct any questions regarding shipping to Sales@S5Locks.com
We utilize recycled shipping materials and eco-friendly practices when possible to reduce our carbon footprint and ensure our prices reflect our product’s value – not packaging costs.
Our structural steel coupler lock bodies are proudly manufactured in America. Most generic locks produced overseas are made with the cheapest materials available. S5 lock bodies are constructed using structural steel (most 1/4″ thick) and feature a puck-style lock mechanism to ensure exceptional strength and durability. The locks are also powder coated to provide a protective barrier against corrosion and weathering.
According to recent reports, events that involved cargo theft in 2022 increased 20% over 2021 with an estimated $223 million in cargo stolen. Don’t let your trailer become a statistic. Protect your investment with our ¼” structural steel locks that are both thicker and stronger than our competitors.
OUR COMMITMENT TO AFFORDABILITY
We keep our prices much more affordable compared to our competitors, even though we provide a thicker and stronger product.
This is because we hold the belief that safeguarding your property shouldn’t lead to financial strain. Our approach stems from our status as a family-owned and operated business, which allows us to prioritize value over solely appeasing a board of investors focused on profit margins.
Furthermore, our use of recycled shipping materials contributes to this affordability, diminishing our carbon footprint and ensuring that our prices align with the actual worth of our product, not packaging expenses.
OUR COMMITMENT TO YOU
We take great pride in delivering the highest quality trailer coupler locks on the market. Our dedicated team pours their expertise and attention to detail into crafting each unique lock.
We treat every lock as if it were for our own family’s trailer, ensuring that it meets the highest standards of security and reliability.
When it comes to securing your property, trust S5 Locks to provide you with the best-in-class protection.
If you have any questions or concerns feel free to reach out. We want you to be happy with your purchase and will do all that is reasonably possible to resolve issues.
As our locks are tailored to each unique trailer coupler, we service a wide variety of brands including:
Shocker, Bulldog, Demco, Wallace Forge, EG, Wells Cargo, Haulmark, and many more.
Browse our storefront to find the perfect lock solution to fit your needs.
JOIN OUR DEALER PARTNERSHIP NETWORK
Partner with S5 Locks to provide customers with immediate, top-notch protection for their investments upon purchase.
Reach out through our contact form to share details about your business and discuss the most suitable inventory of trailer coupler locks for your customers.
If you’d like to purchase an S5 Lock in person, reach out via our contact form and we’ll connect you with the closest local dealer.