If metal hardware is dropped from a height over what distance, must it be removed from service?

The correct distance for removing metal hardware from service when dropped is 3 feet. This guideline is typically based on manufacturer recommendations and safety standards, which are in place to ensure that equipment remains safe and reliable. When hardware is dropped from this distance, it can sustain micro fractures or structural damage that may not be visible to the naked eye. Such damage can significantly compromise the integrity of the hardware during its use, potentially leading to failures that could have serious consequences in emergency situations.

By adhering to the 3-foot rule, personnel help maintain a high standard of safety. In contrast, options that suggest distances lower than 3 feet might not be adequately protective, while distances above this may not align with the established protocols or be necessary for ensuring safety. Thus, recognizing and enforcing the requirement for removal at this specific height helps uphold the safety standards necessary for all operational environments.