The front locking shackle is used inside the stud chain anchor chain, connecting the stud chain anchor chain to related accessories, navigation buoys, mooring sling systems.

Shackles are incredibly versatile and widely - used attachment tools across a multitude of industries, from construction and rigging to the maritime sector. They serve as the crucial links that hold various components together, providing strength and reliability in different applications. Today, we're going to delve into the world of a less - common but highly important type of shackle: the front lock shackle, also known as the forelock shackle.

The forelock shackle may not be as commonly encountered as some other shackle types, but its significance in specific maritime applications cannot be overstated. It is specifically engineered for use within stud link anchor chains. 

These anchor chains are characterized by their studs, which are raised sections along the links that help to maintain the chain's shape and reduce wear during use. The forelock shackle acts as a reliable means of connecting the stud link anchor chain to an associated fitting, such as a deck fitting on a ship, a termination point on a marine structure, or within a navigation buoy mooring bridle system.

In terms of sizing, the nominal diameter of the stud link anchor chains that the forelock shackle can accommodate ranges from 22mm to 40mm. This range makes it suitable for a variety of small to medium - sized vessels and marine structures where a secure and appropriate - sized connection is required.

One of the most unique and defining features of a marine forelock shackle is the addition of a small metal clip or wire, which is aptly named the "forelock." This seemingly simple component plays a crucial role in ensuring the safety and integrity of the shackle connection. The forelock is designed to secure the pin or bolt in place. The pin or bolt is what holds the two ends of the shackle together, and without proper securing, it could potentially slip out, leading to a catastrophic failure of the mooring or connection system.

To install the forelock, it is first bent into the appropriate shape. Then, it is inserted through a small hole in the