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NAS6604H12
Close Tolerance Bolt - Drilled Head
Description
Close Tolerance Bolt - Drilled Head
Specifications
| Country of Origin | USA |
|---|---|
| Fastener Length | 1.160 inches minimum and 1.190 inches maximum |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.740 inches minimum and 0.760 inches maximum |
| Head Height | 0.125 inches minimum and 0.140 inches maximum |
| Head Style | Dished hexagon |
| Hole Configuration Style | Hexagon corners |
| Hole Diameter | 0.046 inches minimum and 0.056 inches maximum |
| Hole Quantity | 3 |
| Hole Type | Drilled |
| Length | 1 3/16 |
| Material | Steel |
| Material Specification | Mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-205-9156 |
| NSN | 5306-01-205-9156 |
| Specification Data | 80205-nas6604 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.400 inches minimum and 0.450 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Weight | 0.002 lb |
| Width Between Flats | 0.429 inches minimum and 0.439 inches maximum |
Cross-reference
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- NAS6704HU12 NAS 1/4-28 · 0.073 in · Dished hexagon · Iron
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Catalog data updated 2026-07-05. Report a data error