61121 | Trailer Latch Lock for DEMCO EZ Latch - 2.0" Ball

Protect your trailer with InfiniteRule’s application-specific trailer latch locks, designed exclusively for the DEMCO EZ Latch 2" Cast Coupler (Model 61121). Unlike generic locks that attempt to fit all couplers, InfiniteRule locks are custom-machined to fit specific models—providing a tighter, more secure fit and superior deterrence against theft. Constructed from solid stainless steel using precision CNC machining, this lock delivers the strength and durability you need for RV, boat, equipment, or utility trailer security. While no lock can prevent every theft attempt, InfiniteRule locks are independently tested and proven to offer a higher level of protection compared to cheaper, universal alternatives. Criminals are more likely to move on when faced with the added time and difficulty of bypassing an InfiniteRule lock. A tight-sealing O-ring and weatherproof rubber cap protect the keyway from dirt, water, and grime—ensuring reliable performance in all conditions. Trusted by contractors, outdoor enthusiasts, and professional haulers nationwide, InfiniteRule delivers heavy-duty security with long-lasting reliability. InfiniteRule is also a recognized leader in keyed-alike lock systems, simplifying trailer security by reducing the number of keys you need to carry. While this specific Amazon listing is for an individual lock, it represents the same engineering expertise and reputation for convenience that InfiniteRule is known for. All InfiniteRule locks are proudly Made in the USA, with design, machining, assembly, and service handled domestically under strict quality control standards. Before purchasing, confirm your coupler model. This lock is engineered specifically for the DEMCO EZ Latch 2" Cast Coupler and will not fit stamped models or other brands. Choose InfiniteRule Security for application-specific trailer locks, a proven deterrent advantage, and the durability of true American-made quality.

• WARNING — This product is application-specific and designed exclusively for the DEMCO EZ Latch 2" Ball – CAST Coupler. It will NOT fit stamped models or other trailer brands. Not intended for receiver applications.
• WHAT'S INCLUDED — InfiniteRule Security Model 61121 | Trailer Latch Lock for DEMCO EZ Latch – 2" Ball – Cast Coupler. Dimensions: 1/4″ pin diameter x 2-15/16″ usable span.
• CUSTOM FIT — Specifically engineered for the DEMCO Cast EZ Latch Coupler – 2" Ball to ensure the most secure and proper fit. NOT a universal lock.
• APPLICATION-SPECIFIC DESIGN — Unlike one-size-fits-all trailer locks, InfiniteRule develops locks that match exact manufacturer couplers for superior protection.
• SECURITY & DETERRENCE — While no lock is unbreakable, InfiniteRule locks are CNC-machined from solid stainless steel, making them significantly stronger and more tamper-resistant than low-cost, universal alternatives.
• INDEPENDENTLY TESTED — All InfiniteRule locks are rigorously tested by trusted 3rd-party security solutions, ensuring strength, reliability, and consistent deterrent protection.
• DURABLE AND WEATHER-RESISTANT — Built to resist rust and corrosion. Includes a tight-fitting rubber cap and O-ring to keep rain, dirt, and debris out of the keyway.
• KEYED-ALIKE RECOGNITION — InfiniteRule is widely recognized for its keyed-alike lock systems, simplifying security by allowing multiple locks to be used with one key. While this listing is sold as an individual lock, it reflects the same expertise trusted by trailer owners nationwide.
• 100% MADE IN THE USA — Proudly designed, CNC-machined, shipped, and serviced entirely in the USA with strict quality control standards.
• PROTECT YOUR INVESTMENT — InfiniteRule locks provide stronger deterrence, better fitment, and higher durability than generic alternatives—giving trailer owners peace of mind on the road.