The HDTB Series Heavy-Duty Jaw & Jaw Turnbuckles (also known as UU Type Rigging Screws) are engineered for high-capacity tightening, lashing, and securing operations in the most demanding environments, providing the ultimate combination of strength, precision, and durability.

• Extreme Load Capacity: Specifically designed for heavy-duty industrial and marine applications, offering Working Load Limits (WLL) ranging from 13.5 tons up to a massive 250 tons.
• Jaw to Jaw Design: Features two robust jaw (clevis) ends equipped with load-bearing pins, allowing for direct, secure connections to wire rope sockets, steel plates, and heavy shackles.
• Precision Tension Control: Built with a heavy-duty threaded body (typically a trapezium thread) that allows operators to precisely adjust the length and tension of heavy tie rods and lashing cables.
• Vibration Resistance: Commonly supplied with securing lock nuts that tighten against the turnbuckle body to prevent the threads from backing off or loosening under severe vibration.