316 Stainless Steel Spring Double Hook for Marine and Diving Use

A double hook clips onto a chain link or a rail without a shackle pin to lose over the side: two spring gates, one either side, so it can be clipped on from any angle. 316 stainless for salt water. Made by Diyang.

Stainless Double Hook: Overview

The double-ended form has a spring gate at each end, so the hook can be attached to a rail, a chain link or a ring and still present a gate to clip a line onto. That makes it quicker to use than a shackle, which needs a pin removed and refitted.

It is made in 316 stainless steel, the grade used for marine hardware: it resists salt water and chlorides where a 304 fitting would pit and seize after a season on deck.

The supplier also lists these as diving hooks, which is the usual application: clipping a line, a reel or a torch to a harness or a boat rail one-handed.

Key Features at a Glance

• 316 stainless – the marine grade, for salt water and chlorides.
• Double ended – a spring gate at each end.
• One-handed clipping – faster than a shackle for temporary attachments.
• Anchor chain and rails – clips onto a link or a tube without a pin.
• Diving and boat use – the application these are made for.

Where a Double Hook Is Used

On deck

These hooks are used to clip lines, fenders and safety lines to a rail or a chain, and to clip a chain to an anchor roller where a shackle would be awkward to reach.

The spring gate means the attachment can be released under hand pressure, which is what makes them useful where a fitting has to be moved between points.

Diving and watersports

Divers use the double hook to hang a reel, a torch or a bag on a harness or a boat rail. The 316 body resists the salt water that would rust a plated hook within weeks.

The supplier offers customisation, so the hooks can be made to a specific size or finish for an own-brand range.

Stainless in Salt Water

Rinsing

Stainless resists corrosion; it does not ignore it. Salt left on a 316 fitting can still cause pitting if the surface never dries, so a freshwater rinse after use extends the life of the spring and the gate pins considerably.

Work the gates a few times after rinsing so water does not sit in the spring.

Checking the gate

The spring gate is the wear part. Check that it closes under its own pressure and seats against the nose of the hook; a gate that stays open is a hook that will drop its load.

Retire a hook with a bent gate or a hook body that has opened under load.

Specifications

Packaging Information

Hooks ship bagged. Carton quantities are available on request.

Where It Is Used

Boat and yacht hardware, anchor and mooring lines, diving and watersports equipment, marine rigging, and general stainless hardware where a quick clip is needed.

Choosing the Right Item

1. Size the item to the connection it has to make: pin or thread size first, then the rated load or working pressure.
2. Choose the material by environment: galvanised or plated carbon steel for general work, stainless for salt water and constant wet.
3. For stock, buy the sizes that appear on most jobs and mix cartons rather than deep-stocking one size.
4. Keep the moving parts – pins, gates, stems and liners – as service items, since they wear before the body does.

Care and Maintenance

Check the thread, pin or gate before each use: the moving part is what fails first on a fitting.

Do not mix stainless and galvanised parts where the assembly stays wet; the two metals corrode each other.

Store fittings dry and off the floor, and keep damaged items out of stock rather than returning them to the box.

OEM and Bulk Supply

The supplier accepts OEM and ODM work with own-brand marking and packaging, so a range can be supplied under a retail brand.

Frequently Asked Questions

Is this a single item or a set?

It is supplied as described above – Spring double hook. One unit per order.

How heavy is it and how is it packed?

The unit weighs about Light, ships bagged or boxed. Hooks ship bagged. Carton quantities are available on request.

What is it made of?

Key material: 316 stainless steel. Other specifications are listed in the Specifications table above.

What is it used for?

Boat and yacht hardware, anchor and mooring lines, diving and watersports equipment, marine rigging, and general stainless hardware where a quick clip is needed.

Can I buy in bulk or with my own branding?

Yes. Own-brand marking and packaging are available on request, with OEM and ODM support.

Summary

A double hook clips onto a chain link or a rail without a shackle pin to lose over the side: two spring gates, one either side, so it can be clipped on from any angle.

Typical use: Boat and yacht hardware, anchor and mooring lines, diving and watersports equipment, marine rigging, and general stainless hardware where a quick clip is needed.