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NAS6704D20
Shear Bolt
Description
Fastener Length: 1-43/64", Thread: 1/4-28, Thread Length: 27/64", NAS6704 series bolt
Specifications
| Color | Green threads |
|---|---|
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.497 inches nominal first hole |
| Fastener Length | 1.675 |
| Grip Diameter | 0.2485 inches minimum and 0.2495 inches maximum |
| Grip Length | 1.250 |
| Head Height | 0.125 |
| Head Style | Dished hexagon |
| Length | 1 43/64 |
| Material | Iron |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Shank Unthreaded Hole Diameter | 0.076 inches nominal first hole |
| Special Features | .2500-28 thread unjf-3a |
| Surface Treatment | Cadmium and chromate |
| Thread Class | 3a |
| Thread Diameter | 0.2500 |
| Thread Direction | Right-hand |
| Thread Length | 0.425 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Width Between Flats | 0.429 inches minimum and 0.439 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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.
- NAS1304-20D NAS 1/4-28 · 0.073 in · Dished hexagon · Steel
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Catalog data updated 2026-07-05. Report a data error