bolts › close tolerance bolts
AN176-27A
Aeronautical Standard Close Tolerance Bolt
Description
Fastener Length: 2-63/64", Thread: 3/8-24, Thread Length: 11/16", hexagon head, AN176 series bolt
Specifications
| Fastener Length | Between 2.937 inches and 2.984 inches |
|---|---|
| Grip Diameter | Between 0.3737 inches and 0.3742 inches |
| Grip Length | Between 2.296 inches and 2.328 inches |
| Hardness Rating | 26.0 rockwell c and 32.0 rockwell c |
| Head Height | Between 0.203 inches and 0.235 inches |
| Head Style | Hexagon Head |
| Material | Steel |
| Material Specification | Mil-s-6049 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-5626 military specification 4th material response or mil-s-6758 military specification 5th material response or ams 6300 assn standard 6th material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Surface Finish | 63.0 microinches bearing surface of head, 63.0 microinches grip |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 3 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.609 inches and 0.688 inches |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 3/8 |
| Width Between Flats | Between 0.553 inches and 0.565 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN176-27A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error