What action is required if a crack 1/4" long is observed in a standard 5/8" stud head?

When a crack is observed in a standard 5/8" stud head, the appropriate action is to replace the stud. The presence of a crack, especially one that is 1/4" long, indicates that the integrity of the stud has been compromised. Studs are critical components in structural applications, and a crack could lead to failure under load, posing significant safety risks.

Replacing the stud ensures that the structural integrity is restored and that the assembly remains safe for its intended use. Other actions, such as repairing with additional welding, may not guarantee complete reliability and could potentially introduce new stresses or weaknesses. Documenting the crack or circling it for further inspection does not address the immediate risk associated with a cracked stud, which should be proactively replaced to mitigate any safety concern.