Shackle main purpose and scope of application:

Shackle end can be used to rigging accessories, directly connected to the suspended substance in hoisting operation.
Shackle can be used for rigging and end fittings, only plays a role of connection.
When rigging used with beams, shackle can be used to rigging instead of rings and the lower beam at the top of the ear plate connection, easy to install and disassemble.
Shackle lifting operation is the most widely used connection tools, lifting often is mainly used for installation and removal of the connection parts.