Harken 57mm Triple Carbo Block - Swivel, Becket, Cam Cleat

The Harken 57mm Triple Carbo Block with Swivel, Becket, and Cam Cleat is a precision load-management component engineered for serious rigging applications where controlled mechanical advantage and durability are non-negotiable. Whether you're working with vehicle recovery systems, marine winch setups, or high-load mechanical applications, this triple block delivers the efficiency and reliability professional technicians demand. The swivel-integrated design eliminates twist and tangling under sustained tension, while the becket attachment point enables seamless integration into multi-line pulley configurations.

Built from Harken's proprietary composite carbon material, the 57mm block combines ultralight weight—just 1 pound—with exceptional tensile strength, making it ideal for weight-sensitive installations like off-road recovery rigs or marine systems. The cam cleat mechanism provides instantaneous load-holding capability without requiring knots or secondary fasteners, allowing operators to lock lines under full tension with a single motion. The triple-sheave design distributes load across multiple friction points, reducing stress concentration and extending working life even in high-cycle applications. Dimensions of 5 x 4 x 5 inches make it compact enough for confined spaces while maintaining the structural integrity necessary for industrial-grade duty cycles.

Experienced mechanics and riggers benefit most from this block's versatility—it integrates into anchor-point systems, vehicle recovery spreader bars, and dynamic tensioning setups with minimal modification. The swivel bearing prevents rope torque from degrading anchor hardware, while the cam cleat eliminates the need for additional stoppers or cleating devices, reducing system complexity and failure points. Professional-grade applications including winch line management, load-securing arrays, and adjustable mechanical tension systems all leverage this block's proven performance, making it an essential component for any serious technician's rigging arsenal.