What should the minimum edge margin be in relation to the diameter of the fastener shank?

Prepare for the Aerospace Assembly Mechanic Certification Test. Study with flashcards and multiple choice questions, complete with hints and explanations. Gear up for a successful exam!

The minimum edge margin in relation to the diameter of the fastener shank should be twice the diameter. This standard ensures that there is sufficient material surrounding the fastener to provide adequate strength and integrity to the assembly. An edge margin that is too small might compromise the material's ability to bear loads and resist failures, such as pulling out or shearing.

Using a margin of twice the diameter allows for better distribution of stress around the fastener and minimizes the risk of material failure at the edges. It's crucial for maintaining the structural integrity of components, especially in aerospace applications, where safety and performance are paramount. The established guidelines dictate that this practice helps ensure that the integrity of both the fastener and the materials being joined are preserved during operation.

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