OneMonroe’s Anti-Rack Locks provide superior security and stability for truck and trailer doors, preventing unwanted movement and ensuring a secure closure. Our anti-rack locking systems, including the 558, 657, and 658 models, are designed with high-strength materials and precision engineering to withstand rigorous use in transportation and industrial applications. These locks effectively reduce door misalignment and enhance durability, making them an essential choice for fleet operators and logistics companies looking for reliable locking solutions.
The 558 Two-Point Truck/Trailer Anti-Rack System can be supplied as a complete weldment using 1" schedule 40 pipe or as a kit of parts for field welding, featuring forged steel cams and keepers, anti-rack rings, and nylon-bearing brackets. For additional flexibility, the 657 and 658 models come with two large brackets with nylon bearings, a center bracket, two keepers, two cams, a handle, and a hasp, with the ability to configure the lock for right- or left-hand operation. Available in polished stainless steel or galvanized steel finishes, OneMonroe’s Anti-Rack Locks offer durability, strength, and customizable solutions to meet your specific application needs.