FASTENER LAYOUT
Fastener Edge Margin
Definition of distance from fastener-hole centre to the nearest structural edge.
Key reference points
- Edge margin is normally measured from the hole centre.
- Insufficient margin can reduce joint strength and damage tolerance.
- Use the exact minimum, maximum and measurement basis in approved data.
Training-reference boundary
This summary is not approved repair or maintenance data. Do not inspect, classify, select material, alter structure or perform a repair from this page alone. Use the current applicable SRM, AMM, engineering order, drawing and company procedures.