Lewmar 72mm Synchro Snap Shackle

Upgrade your rigging setup with the Lewmar 72mm Synchro Snap Shackle, a game-changer for sailors and boaters seeking seamless versatility. This innovative shackle transforms ordinary blocks into quick-release powerhouses, allowing effortless swaps without compromising on strength or safety. Crafted for those demanding moments on the water, it combines precision engineering with user-friendly design to handle the rigors of marine environments.

Why Choose the Synchro Snap Shackle for Your Boat?

In the world of sailing, every piece of hardware must perform under pressure—wind, waves, and salt spray included. The Synchro Snap Shackle's ring-pull release mechanism lets you disengage with a simple tug, even when tension is high. This isn't just convenience; it's a safety feature that can prevent tangles during maneuvers or emergencies. Sailors often rave about how it streamlines spinnaker sheets, halyards, or control lines, making adjustments faster than traditional shackles.

Built from high-grade 316 stainless steel, it laughs off corrosion from saltwater exposure, UV rays, and harsh weather. Whether you're racing offshore or cruising coastal waters, this shackle maintains its mirror-like finish and reliable snap action over seasons of use.

Key Performance Highlights

• Quick-Release Innovation: Synchronized jaw and pin ensure smooth opening and secure closure, ideal for dynamic loads.
• Robust Strength Ratings: Handles demanding working loads up to 2420 lbs, with a safety factor doubling to 4840 lbs breaking strength.
• Precision Fit: 1/4-inch pin diameter pairs perfectly with standard blocks, eliminating the need for custom modifications.
• Low-Maintenance Design: No tools required for operation, reducing wear points compared to wire gate shackles.

Real-World Applications on Board

Picture this: you're in a tack, and the genoa sheet needs instant adjustment. With the Synchro Snap Shackle, a flick of the ring releases it cleanly—no fighting sticky pins or risking finger pinches. It's a favorite among dinghy racers for its lightweight profile (72mm size keeps weight down) and offshore cruisers for attaching blocks to toerails or lifelines.

Beyond sails, it excels in anchoring systems, davit setups, or even kayak rigging on larger vessels. The key? Its ability to add snap functionality to non-snap hardware, breathing new life into older blocks and saving you from full replacements.

Installation and Best Practices

Swapping in a Synchro Snap Shackle takes minutes. Remove your existing shackle, align the pin through the block's eye, and snap shut—the jaws self-align for a secure hold. Always inspect for debris before use, and rinse with fresh water after saltwater exposure to maximize longevity. Pro tip: Pair it with Dyneema lines for the ultimate low-friction setup, minimizing chafe and boosting efficiency.

For optimal performance, avoid side-loading beyond spec and periodically test the release under light load. This proactive approach ensures it remains your go-to for reliable, split-second actions.

Care Tips to Extend Shackle Life

Marine gear thrives with TLC. After every outing, a quick freshwater rinse and soft cloth dry prevents salt buildup. Store in a dry locker away from direct sun. If pitting appears (rare with 316 stainless), a light polish restores it— no harsh chemicals needed. Regular checks on the spring tension keep the snap action crisp.