Quick Link


A Quick Link, sometimes referred to as a Rapid Link or Maillon Rapide, is a crucial piece of hardware in the scuba diving and water sports community, as well as in other fields such as rock climbing, caving, and industrial rigging. It is an oval-shaped connector that resembles a chain link and features a screw gate on one side. In this entry, we will delve into the origins, design, materials, applications, and safety aspects of Quick Links within the context of scuba diving.

Origins and Design

The Quick Link can trace its roots back to the development of connectors for industrial and mountaineering applications. It was designed to provide a more secure and robust connection than the traditional carabiner while still offering the convenience of a quick-release mechanism. This was achieved by incorporating a threaded screw gate that, when tightened, offers a strong, reliable, and semi-permanent connection.


Quick Links are typically made from high-quality stainless steel or aluminum. Stainless steel offers excellent resistance to corrosion, making it a popular choice for marine applications such as scuba diving. Aluminum Quick Links are lighter in weight and often used in situations where minimizing equipment load is crucial. However, they are generally not as strong or durable as their stainless steel counterparts.

Applications in Scuba Diving

In scuba diving, Quick Links are used in a variety of applications to secure or connect various pieces of equipment. Some common uses include:

  1. Attaching accessories: Divers often use Quick Links to fasten accessories such as dive lights, underwater cameras, or cutting tools to their BCDs (Buoyancy Control Devices) or harnesses. This allows divers to easily access their equipment while underwater.
  2. Stage bottle rigging: Technical divers frequently use Quick Links to attach stage bottles (extra cylinders) to their primary scuba gear. This provides them with additional gas reserves during extended or deep dives.
  3. Sidemount diving: In sidemount diving, Quick Links are used to secure the diver’s cylinders to their harness. This configuration offers increased flexibility and maneuverability compared to traditional back-mounted cylinders.
  4. Connecting lift bags: Quick Links are often used to fasten lift bags to heavy objects that need to be raised from the ocean floor, such as sunken treasure or debris during underwater cleanup efforts.

Safety Considerations

When using Quick Links in scuba diving or any other application, it is essential to follow proper safety guidelines to ensure their reliability and longevity. Some key points to consider include:

  1. Regular inspection: Prior to each dive, inspect the Quick Link for signs of damage, wear, or corrosion. The threads on the screw gate should be in good condition and engage smoothly.
  2. Proper tightening: Ensure the screw gate is fully tightened before entering the water. An appropriately tightened gate will prevent accidental disconnection, while an overtightened gate may become difficult to open.
  3. Load capacity: Be aware of the rated load capacity for the specific Quick Link being used. Never exceed this limit, as doing so may cause the link to fail or break.
  4. Compatibility: Use Quick Links that are compatible with the material of the equipment they are connecting. For instance, avoid using aluminum Quick Links with stainless steel equipment, as this may lead to galvanic corrosion.
  5. Maintenance: Regularly clean and lubricate the screw gate with a silicone-based lubricant to ensure smooth operation and prevent seizing.

In Conclusion

The Quick Link is a versatile and essential piece of hardware for scuba divers, providing a reliable and semi-permanent connection for various equipment configurations. By understanding the origins, design, materials, applications, and safety considerations of Quick Links, divers can make informed decisions about their gear and ensure a safe, enjoyable underwater experience.