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AN174-11A
Aeronautical Standard Machine Bolt
Description
Close Tolerance Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Fastener Length | 1.156 |
| Features Provided | Finished head |
| Grip | 11/16 in |
| Grip Length | 0.688 |
| Hardness Rating | 32.0 rockwell c minimum and 37.0 rockwell c maximum |
| Head Height | 0.140 inches minimum and 0.172 inches maximum |
| Head Style | Hexagon Head |
| Head Type | Hexagon |
| Industry Standards/Certification | AN174 |
| Length | 1 1/8, 1 5/32 in |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-727-6788 |
| NSN | 5306-00-727-6788 |
| Surface Treatment | Cadmium |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.469 inches minimum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 0.2500-28, 1/4 |
| Weight | 0.02 lb |
| Width Between Flats | 0.428 inches minimum and 0.440 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN174-11A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error