Boat owners and marine enthusiasts, these 316 stainless steel D-shackles are the real deal for marine applications. I've been using them on my sailboat for various rigging tasks, and the corrosion resistance is impressive - even after months in saltwater conditions, they show no signs of rust or pitting. The 316 grade is what you want for serious marine use, not the cheaper 304 that doesn't hold up as well in harsh environments.
The dimensions are precise - 4mm pin diameter, 8mm inside width, and 16mm inside length for the size I'm using. The 450 lb working load limit is more than adequate for my applications, but they feel substantial enough that I trust them for critical connections. The threads engage smoothly without cross-threading, and the pins screw in completely for a secure fit.
What's great is being able to choose both size and quantity - I ordered a mixed set for different purposes around the boat. Perfect for attaching blocks, securing lines, rigging applications, or any situation where you need a reliable, corrosion-resistant connecting point. Much better quality than the zinc-plated hardware store versions that rust quickly in marine environments. Whether you're rigging a sailboat, securing equipment on a fishing boat, or need durable shackles for outdoor applications, these provide that professional-grade performance that gives you confidence in your equipment's safety and reliability.
Free 30-day returns 
Free 30-day returns
