bolts › close tolerance bolts
AN173H23
Aeronautical Standard Bolt
Description
Fastener Length: 2-7/16", Hole Diameter: 1/32", Thread: 10-32, Thread Length: 29/64"
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 2.250 inches minimum first hole and 2.282 inches maximum first hole |
|---|---|
| Fastener Length | 2.390 inches minimum and 2.437 inches maximum |
| Grip Diameter | 0.1889 inches minimum and 0.1894 inches maximum |
| Grip Length | 1.984 inches minimum and 2.016 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.109 inches minimum and 0.141 inches maximum |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | 0.046 |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Length | 2 7/16 |
| Material | Steel |
| Material Specification | Ams 6300 assn std 1st material response or mil-s-6758 mil spec 2nd material response or mil-s-6050 mil spec 3rd material response or mil-s-6049 mil spec 4th material response or mil-s-6098 mil spec 5th material response or mil-s-5626 mil spec 6th material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Shank Unthreaded Hole Diameter | 0.070 inches nominal first hole |
| Surface Finish | 125.0 microinches threads, 250.0 microinches top of head, 63.0 microinches bearing surface of head, 63.0 microinches grip |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,cl 3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.374 inches minimum and 0.453 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNF |
| Thread Size | 10 |
| Width Between Flats | 0.365 inches minimum and 0.377 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 AN173H23. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error