A piece of rigging hardware used to couple the end of a wire rope to eye fittings, hooks, or other connections is a ____________.

The correct choice for a piece of rigging hardware that couples the end of a wire rope to eye fittings, hooks, or other connections is a shackle. Shackles are versatile connectors typically made of metal and feature a U-shaped body with a pin that secures the connection. They provide a reliable means of attaching various components in rigging applications, ensuring a strong and secure link between the different elements.

In rigging, the use of shackles is prevalent due to their ability to easily connect and disconnect equipment without compromising safety and strength. Unlike other types of hardware, such as clips or links that serve different purposes or may not provide the same strength, shackles are specifically designed for this coupling purpose and are recognized for their durability and reliability in load-bearing situations.

The design of a shackle allows for quick and easy connection, which is essential in dynamic situations often found on job sites. Other hardware, such as swivels, serves different functions, such as allowing rotation to prevent twisting of the rope but are not used as coupling devices for wire ropes.