Upgrade Your Rigging Setup with the RiaYer 316 Stainless Steel Bow Shackle Whether you are outfitting your sailboat, securing an anchor chain, or preparing your 4x4 for off-road adventures, you need hardware you can trust. The RiaYer Heavy Duty Bow Shackle is engineered for maximum strength, durability, and peace of mind. Why Choose 316 Stainless Steel over Standard 304? Standard metals rust quickly when exposed to the elements. Our shackles are constructed entirely from true Marine-Grade 316 Stainless Steel. This premium alloy contains molybdenum, which drastically enhances its resistance to saltwater corrosion and pitting. It's built to survive in the toughest marine and outdoor environments without losing its structural integrity or sleek appearance. Double the Security with Cotter Pin Design Safety is our top priority. High-vibration environments can cause traditional screw-pin shackles to back out over time. We've solved this by adding a safety cotter pin (split pin) to the bolt design. Once the bolt is tightened and the pin is inserted, the shackle is locked in place. You can rig it and forget it, knowing your load is secure.