bolts › machine bolts
NAS428H4-5
Bolt
Description
Fastener Length: 11/16", Hole Diameter: ", Thread: 1/4-28, Thread Length: 19/32"
Specifications
| Fastener Length | 0.625 inches minimum and 0.687 inches maximum |
|---|---|
| Features Provided | Finished head |
| Grip Length | 0.031 inches minimum and 0.062 inches maximum |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 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 | 11/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Specification Data | 80205-nas428 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.563 inches minimum and 0.594 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 0.460 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS428H4-5
- NAS428H4-12
- NAS428H4-16
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS428H4A5 NAS 1/4-28 · 11/16 in · Crowned hexagon · Steel
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error