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AN101119
Aeronautical Standard Bolt
Description
Fastener Length: 1-3/8", Thread: 1/4-28, Thread Length: 11/16"
Specifications
| Fastener Length | 1.365 inches minimum and 1.385 inches maximum |
|---|---|
| Features Provided | Finished head |
| Grip Length | 0.690 inches minimum and 0.750 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.146 inches minimum and 0.166 inches maximum |
| Head Style | Hexagon Head |
| Length | 1 3/8 |
| Material | Steel |
| Material Specification | Ams 6322 assn std single material response |
| Surface Finish | 32.0 microinches threads, 63.0 microinches bearing surface of head |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Ams 2400 assn std single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.615 inches minimum and 0.695 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between Flats | 0.430 inches minimum and 0.439 inches maximum |
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.
- AN101120 AN 1/4-28 · 0.073 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error