A shackle is a small fitting with a big job, and this collection covers the full range for rigging, sail handling, anchoring and mooring: D shackles, bow shackles, twisted and long-pattern shackles, high-resistance versions for anchor chain, and captive-pin and key-pin designs across all common sizes in stainless and galvanised steel.
Choose the pattern for the job - D shackles for straight-line loads, bow shackles where the load direction changes, twisted shackles to turn a fitting through 90 degrees - and always size by the load, not just the pin diameter. For anchor connections, match the shackle to your chain size and mouse the pin so it can't unwind. If you're replacing a shackle from standing rigging, replace like for like in both size and grade.
Frequently asked questions
What is the difference between a D shackle and a bow shackle?
A D shackle takes load in a straight line and is stronger for its size, while a bow (anchor) shackle has a rounded body that accepts loads from changing directions - useful for mooring bridles and multi-leg connections.
What size shackle do I need for my anchor chain?
Use a shackle at least the same size as your chain, ideally a high-resistance pattern one size up, since a standard shackle can be the weakest link in the ground tackle. Always seize (mouse) the pin with wire or a cable tie.
Are stainless steel or galvanised shackles better?
Stainless resists rust and looks smart for deck and rigging use, while galvanised steel is tougher against abrasion and preferred for anchor and chain work - matching galvanised chain with galvanised shackles also avoids galvanic corrosion.