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NAS564C51
Bolt
Description
Fastener Length: 1-5/8", Hole Diameter: 5/64", Thread: 1/4-28, Thread Length: 1-19/32"
Specifications
| Fastener Length | 1.578 inches minimum and 1.625 inches maximum |
|---|---|
| Features Provided | Finished head |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Height | 0.219 |
| Head Style | Hexagon Head |
| Hole Configuration Style | Hexagon corners |
| Hole Diameter | 0.070 inches minimum and 0.080 inches maximum |
| Hole Quantity | 3 |
| Hole Type | Drilled |
| Length | 1 5/8 |
| Material | Iron |
| Material Specification | Ams 5737 assn std single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas564 professional/industrial association standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 1.518 inches minimum and 1.595 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.428 inches minimum and 0.440 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
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Catalog data updated 2026-07-05. Report a data error