Wichard Captive Pin D Shackle - Diameter 8mm - 5/16"

The Wichard Captive Pin D Shackle in 8mm diameter (5/16-inch) is purpose-built for serious boaters and marine professionals who demand reliability in critical rigging applications. This French-engineered fastener serves as the backbone of your deck hardware system, connecting anchor lines, boom tackle, and safety systems where failure is simply not an option.

Wichard's captive pin design eliminates the risk of losing the pin overboard or during rough handling—a critical feature when working on deck in waves or at height. The 8mm diameter offers an ideal balance of strength and weight, rated for typical cruising and commercial applications without the overkill of larger hardware. Forged from high-tensile marine-grade materials and finished to resist corrosion in saltwater environments, this shackle maintains its integrity season after season.

The D-shape geometry distributes load evenly across the bow, reducing stress concentration and extending service life compared to round or oval alternatives. This shackle works seamlessly with standard marine rigging systems, anchor rode setups, and traditional deck hardware installations up to its working load limit. Experienced deck crews choose the Wichard Captive Pin D Shackle for chainplate attachment, boom gallows fittings, and other critical applications.