Closed Spelter Socket

A closed spelter socket is a specific type of wire rope termination or end fitting used to create a secure connection between a wire rope and an attachment point. Spelter sockets are typically made of steel and are used in heavy-duty lifting and rigging applications. The "closed" design refers to the fact that this type of socket is completely enclosed, providing additional protection and security for the wire rope.

Here are some key features and characteristics of a closed spelter socket:

  • Closed Design: As the name suggests, closed spelter sockets completely enclose the wire rope, offering protection from external elements and damage. This design also helps prevent the wire rope from slipping out of the socket.
  • Spelter Pouring: To secure the wire rope within the socket, molten zinc or spelter is poured into the socket cavity. This creates a bond between the wire rope and the socket, ensuring a strong and reliable connection.
  • Tapered Interior: The interior of a closed spelter socket is typically tapered or conical, allowing for a snug fit between the wire rope and the socket when the spelter is poured and solidified. This tapered design enhances the socket's holding capacity.
  • Attachment Point: Closed spelter sockets often have an attachment point, such as an eye or clevis, at the top end. This attachment point allows for the connection of hooks, shackles, or other hardware.


Closed spelter sockets are commonly used in applications where heavy loads need to be lifted or secured using wire ropes, such as in construction, mining, marine, and offshore industries. These sockets provide a strong and durable connection that is well-suited for high-stress environments.


Proper installation and inspection of closed spelter sockets are essential to ensure the safety and reliability of the connection. Regular maintenance and replacement of sockets that show signs of wear or damage are also critical to prevent accidents and ensure the integrity of the rigging system. It's important to follow manufacturer recommendations and industry standards when working with closed spelter sockets to maintain safety and compliance.

Closed Spelter Socket