Yale Standard Beam Clamps.

Provides a quick and versatile rigging point for hoisting equipment, pulley blocks or loads. Flexible application due to wide adjustment range. The central threaded spindle allows easy attachment and a safe and secure grip so it doesn't slack.

Optionally can be supplied as a beam clamp with a shackle.

Yale YC92 Beam Clamp With Shackle. Provides a quick and versatile rigging point for hoisting equipment, pulley blocks or loads and comes complete with a locking device and is supplied with a shackle. Flexible application due to wide adjustment range. The central threaded spindle allows easy attachment and a safe and secure grip. This clamp comes complete with shackles and is also available as a standard beam clamp