bolts › machine bolts
NAS428H4A7
Bolt
Description
Fastener Length: 7/8", Hole Diameter: ", Thread: 1/4-28, Thread Length: 1-1/16"
Specifications
| Fastener Length | 0.875 |
|---|---|
| Features Provided | Finished head |
| Hardness Rating | 26.0 rockwell c maximum |
| Head Height | 0.141 |
| Head Style | Crowned hexagon |
| Hole Configuration Style | Hexagon flats |
| Hole Diameter | 0.062 |
| Hole Quantity | 1 |
| Hole Type | Drilled |
| Length | 7/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Part Name Assigned By Controlling Agency | Bolt,machine,125,000 psi-crowned hexagon head,adjusting |
| Specification Data | 80205-nas428 professional/industrial association standard |
| Surface Treatment | Cadmium |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 1.000 inches minimum and 1.062 inches maximum |
| 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
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