Which bolt type would be identified by its head marking as magnetically inspected?

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Multiple Choice

Which bolt type would be identified by its head marking as magnetically inspected?

Explanation:
Head markings on bolts can indicate the specific inspection that was performed, such as magnetically inspecting the fastener. Magnetic Particle Inspection involves magnetizing a ferrous bolt and applying iron particles to reveal surface and near-surface flaws. When a bolt has undergone this inspection, it is commonly marked to show MPI has been completed, so technicians know it has met that nondestructive test. That marking directly identifies the bolt as magnetically inspected, separating it from bolts whose markings indicate only material type (stainless, alloy, or standard steel) without implying MPI status.

Head markings on bolts can indicate the specific inspection that was performed, such as magnetically inspecting the fastener. Magnetic Particle Inspection involves magnetizing a ferrous bolt and applying iron particles to reveal surface and near-surface flaws. When a bolt has undergone this inspection, it is commonly marked to show MPI has been completed, so technicians know it has met that nondestructive test. That marking directly identifies the bolt as magnetically inspected, separating it from bolts whose markings indicate only material type (stainless, alloy, or standard steel) without implying MPI status.

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