Why are hold labels used on parts?

Hold labels are used on parts primarily to require further inspection before those parts can be approved for use or shipment. When a part receives a hold label, it indicates that there may be quality concerns, defects, or non-conformance that need to be addressed. The purpose is to ensure that all parts meet the necessary quality standards and specifications before they proceed further in the manufacturing or distribution process. This practice is vital for maintaining product integrity, safety, and compliance with quality assurance protocols.

In contrast to the other choices, which do not accurately reflect the main function of hold labels, using them strictly for aesthetic purposes, indicating readiness for shipment, or signifying obsolescence does not align with the core objective of hold labeling. The essence of a hold label is its role in preventing potentially defective components from being utilized or sent out, thereby enhancing overall quality control.