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AN177C16
Aeronautical Standard Bolt
Description
Fastener Length: 1-7/8", Thread: 7/16-20, Thread Length: 11/16"
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 0.104 inches nominal first hole |
|---|---|
| Fastener Length | 1.829 inches minimum and 1.875 inches maximum |
| Grip Diameter | 0.4362 inches minimum and 0.4367 inches maximum |
| Grip Length | 1.173 inches minimum and 1.203 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Height | 0.234 inches minimum and 0.266 inches maximum |
| Head Style | Hexagon Head |
| Length | 1 7/8 |
| Material | Steel |
| Material Specification | Mil-s-18732 mil spec single material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Shank Unthreaded Hole Diameter | 0.106 inches minimum first hole and 0.116 inches maximum first hole |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.438 |
| Thread Direction | Right-hand |
| Thread Length | 0.626 inches minimum and 0.702 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNF |
| Thread Size | 7/16 |
| Width Between Flats | 0.615 inches minimum and 0.627 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 AN177C16. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error