Safety and power · safety

Screw-pin shackle

A shackle closed by a threaded removable pin for appropriate temporary connections.

Safety notes

Tighten correctly and prevent rotation or conditions that could unscrew the pin.
Applicable law, permits, collective agreements, venue rules, and qualified-person decisions take precedence.

In practice

Tighten correctly and prevent rotation or conditions that could unscrew the pin.

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Sources

Published Technical Standards · Entertainment Services and Technology Association
Recommended Practices for Safety and Health Programs · Occupational Safety and Health Administration

Educational reference only. Requirements vary by jurisdiction, employer, venue, and production context.