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AN4-51A
Aeronautical Standard Machine Bolt
Description
Airframe Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Grip | 4 11/16 in |
| Grip Length | 4 11/16 |
| Head Type | Hexagon |
| Industry Standards/Certification | AN4 |
| Length | 5 5/32 in |
| Nominal Length | 5 5/32 |
| Thread Size | 1/4-28 |
| Weight | 0.08 lb |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- AN4-52 AN 1/4 in · 1/8 in
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Catalog data updated 2026-07-05. Report a data error