bolts › machine bolts
AN3C20
Aeronautical Standard Bolt
Description
Airframe Bolt, Drilled
Specifications
| Country of Origin | USA |
|---|---|
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.875 inches minimum first hole and 1.906 inches maximum first hole |
| Fastener Length | 2.016 inches minimum and 2.062 inches maximum |
| Features Provided | Finished head |
| Grip Length | 1.609 inches minimum and 1.641 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 |
| Length | 2 1/16 |
| Material | Steel |
| Material Specification | Mil-s-18732 mil spec single material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| NIIN | 00-182-2031 |
| NSN | 5306-00-182-2031 |
| Shank Unthreaded Hole Diameter | 0.070 inches minimum first hole and 0.080 inches maximum first hole |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.375 inches minimum and 0.453 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNF |
| Thread Size | 10 |
| Weight | 0.02 lb |
| Width Between Flats | 0.365 inches minimum and 0.377 inches maximum |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN3C20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error