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AN4CH3A
Aeronautical Standard Bolt
Description
Fastener Length: 15/32", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 13/32"
Specifications
| Fastener Length | 0.469 |
|---|---|
| Features Provided | Finished head |
| Grip Length | 0.062 |
| Head Height | 0.140 inches minimum and 0.172 inches maximum |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | 0.046 |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Length | 15/32 |
| Material | Steel |
| Material Specification | Qq-s-770 fed spec single material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.407 inches minimum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between Flats | 0.428 inches minimum and 0.440 inches maximum |
Other sizes
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Catalog data updated 2026-07-05. Report a data error