Hey boat owners and marine enthusiasts! This Five Oceans D shackle is exactly what you need for serious marine applications. Made from tough AISI316 stainless steel, this thing is built to handle saltwater environments without corroding. The captive pin design is super clever - you can fasten and unfasten it without ever removing the screw from the pilot hole. With a working load limit of 741 pounds (336 kg), this shackle can handle some serious weight. The dimensions are perfect for various applications: 1/4 inch pin diameter, 1/4 inch bow diameter, 1/2 inch jaw inside width, and 7/8 inch inside length. The polished finish isn't just for looks - those smooth contours prevent snagging and make handling safer. Whether you're rigging sailboats, securing loads on trucks or RVs, or working with trailer boats, this forged stainless steel shackle outperforms cast alternatives by maintaining its shape under heavy loads. Five Oceans has been making quality marine products for 40 years, so you know you're getting something that's been tested and proven in real ocean conditions. Just remember - while it's tough, always stay within that working load limit and take proper precautions in extreme weather conditions.