Oval Spring Snap Hook DIN 5299C, AISI 316 Stainless

This Oval Snap Hook (DIN 5299C standard) is a versatile and convenient connector widely used in marine environments and beyond. Crafted from AISI 316 stainless steel, it offers superior corrosion resistance, meaning it won’t rust or degrade even with constant exposure to seawater and the elements. The oval shape and smooth surface of the hook ensure uniform strength and minimize wear on ropes or attachment points.

The hook features a spring-loaded gate: simply press on the gate to open, attach the hook to a loop or eye, and release – the spring will snap the gate shut, locking the hook in place. The gate and body are precisely engineered to have a slight overlap when closed, ensuring there’s no gap for the rope or item to slip through accidentally. Unlike plain steel or zinc-plated hooks, this stainless snap hook will remain strong and good-looking over time, without flaking or corroding.

Size Options & Typical Uses: (The hook is available in several sizes, referring to the diameter of the rod and the overall length of the hook. Choose the size based on the load and opening size you need.)

• 4 mm (Length ~40 mm, Opening ~7 mm): Smallest size, great for light-duty tasks. Use 4 mm snaps for hanging tool lanyards, attaching small fenders or buoyancy aids on dinghies, or even as keychain hooks. They are perfect for loads under ~40 kg – for example, clipping a paddle leash to a kayak or securing a deck brush on board.
• 5 mm (Length ~50 mm): Slightly larger, with ~50 kg safe working load. Common on small boats for tying fender lines to rails, securing coil of rope, or clipping a water bottle or dry bag to a fixed point. Also handy in camping gear or for pet leashes due to its quick-connect nature.
• 6 mm (Length ~60 mm): General-purpose size, ~60 kg capacity. Widely used on yachts and motorboats for everyday tasks: e.g., clipping safety lines or securing the end of a flag halyard. A 6 mm stainless snap hook can hold a coiled hose, secure a deck chair, or attach a dock line temporarily. It’s still easy to operate with one hand, even with gloves.
• 8 mm (Length ~80 mm): Medium-heavy duty, ~110 kg capacity. This size is robust enough for more demanding uses: holding heavier fenders on larger boats (8–10 m boats often use 8 mm hooks for fenders), connecting anchor lines for canoes or small fishing boats, or bundling multiple ropes. It’s also used in light industrial settings for hanging cables or chains where quick release is needed.
• 10 mm (Length ~100 mm): Heavy-duty, ~180 kg capacity. Great for bigger yachts and applications requiring more strength. For example, use 10 mm snap hooks to attach to a bosun’s chair (as a secondary safety, though certified locking carabiners are primary for human suspension), secure a boarding ladder, or connect to a towing bridle of a small dinghy. They can handle the weight of loaded gear bags, small outboard engines (when hoisting with a davit, though always double-check weight limits), etc.
• 12 mm (Length ~140 mm): Extra heavy-duty, ~270 kg capacity. Suitable for very large loads on deck – like securing a Jet Ski or dinghy on deck with straps (the hooks clipping to tie-down points), or for industrial use such as connecting heavy tarps or containers temporarily. On land, 12 mm stainless snap hooks might be used on construction sites or warehouses for quick connects that need corrosion resistance.
• 14 mm (Length ~180 mm): Super heavy-duty, ~410 kg capacity. This is the largest typical size, used for exceptionally strong temporary connections. On a big vessel or at docks, a 14 mm snap hook could secure a gangway safety net, a large buoy, or serve in theater rigging and stage work (due to the stainless aesthetic) where a strong quick-link is needed. While very strong, these still open easily by hand thanks to the well-designed spring mechanism.

Please Note: These spring hooks are not load-rated for climbing or life-saving applications. They are intended for general utility use. The spring gate does not have a locking mechanism (unlike safety carabiners with screw locks), so for critical load bearing or overhead lifting, a locking shackle or carabiner is recommended. However, for day-to-day marine uses – hanging, fastening, organizing – these oval snap hooks are exceptionally convenient and reliable.

Marine Applications: On a boat, stainless snap hooks are everywhere. Keep a few 6 mm and 8 mm ones in your toolkit for quick fixes – like replacing a broken sail hank (the hook that attaches a sail to a stay) in a pinch, or creating a quick grab handle by clipping a loop of rope. Use smaller ones to hang a navigation light or a deck lantern. Their resistance to saltwater means you can leave them outside all season with minimal maintenance (a quick freshwater rinse occasionally and some light oil on the spring will keep them like new).

In summary, our DIN 5299C Oval Snap Hooks combine ease of use with marine durability. Whether you’re a sailor, fisherman, diver, or just need a reliable hook for outdoor adventures, these stainless carabiners will perform year after year. They add a layer of convenience to securing almost anything – with just a push and a snap, your gear is attached securely.