bolts › close tolerance bolts
AN175C23
Aeronautical Standard Bolt
Description
Fastener Length: 2-15/32", Thread: 1/4-24, Thread Length: 1-1/2"
Specifications
| Fastener Length | 2.469 |
|---|---|
| Grip Diameter | 0.3112 inches minimum and 0.3117 inches maximum |
| Grip Length | 1.938 |
| Head Height | 0.172 inches minimum and 0.204 inches maximum |
| Head Style | Hexagon Head |
| Length | 2 15/32 |
| Material | Steel |
| Material Specification | Mil-s-18732 mil spec single material response |
| Surface Finish | 125.0 microinches threads, 250.0 microinches top of head, 63.0 microinches bearing surface of head, 63.0 microinches grip |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 1.531 inches minimum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between Flats | 0.490 inches minimum and 0.502 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 AN175C23. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error