Infinite Rule Security 61637-BX 3-Pack Keyed Alike Demco EZ Latch 2-5/16in Coupler Latch Lock & 2.5in Receiver Lock Set with Protector

The Infinite Rule Security 61637-BX is a 3-piece, keyed-alike trailer security combo set purpose-built for Demco EZ Latch couplers and 2.5" Class III/IV/V hitch receivers. Every lock in the pack shares a single key, so you can secure your entire towing setup without juggling multiple keys.

What's Included:

• (1) Demco EZ Latch 2-5/16" Coupler Latch Lock – Precision-engineered to fit the Demco EZ Latch 2-5/16" ball coupler latch opening
• (1) 2.5" Receiver Lock – Machined stainless steel hitch receiver pin lock rated for Class III, IV, and V receivers
• (1) Keyway Protector / Weatherproof Cap – Shields the lock core from rain, road salt, dirt, and debris
• (3) Keys – All locks in the set are keyed alike; carry one, store one, and share one

Key Features:

• Application-Specific Fit – Designed and measured specifically for the Demco EZ Latch 2-5/16" coupler; not a universal lock
• CNC-Machined Stainless Steel Construction – Resists cutting, prying, rust, and corrosion
• Third-Party Tested – Locks and pins are rigorously tested by independent third-party solutions for shear strength and durability
• Keyed-Alike Convenience – All locks in the pack operate with the same key for a simplified one-key towing security system
• Weatherproof Keyway Protection – Tight-fitting rubber cap and O-ring keep moisture and grime out of the lock cylinder
• 100% Made in the USA – Manufactured, shipped, and serviced domestically by a family-owned American company

The 61637-BX is ideal for owners of trailers equipped with Demco EZ Latch 2-5/16" cast couplers — including RVs, campers, flatbeds, and construction trailers — who want a complete, coordinated lock solution for both the coupler latch and the hitch receiver in a single purchase.