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NAS6204-8D
Shear Bolt NAS6204-8D
Description
These bolts supercede NAS1104 high strength bolts. Thread 1/4-28 For Drilled Shank add "D" at end of part number
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 0.675 inches first hole and 0.725 inches first hole |
|---|---|
| Fastener Length | Between 0.855 inches and 0.885 inches |
| Grip | .500 |
| Grip Diameter | Between 0.2485 inches and 0.2495 inches |
| Grip Length | Between 0.490 inches and 0.510 inches |
| Hardness Rating | 36.0 rockwell c and 40.0 rockwell c |
| Head Height | Between 0.125 inches and 0.140 inches |
| Head Style | Dished hexagon |
| Length | .870, 7/8 |
| Material | Steel |
| Material Specification | Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6322 assn standard 2nd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Obsolete PN | NAS1104-8 |
| Shank Unthreaded Hole Diameter | 0.076 inches first hole and 0.086 inches first hole |
| Specification Data | 80205-nas6204 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 type 2 cl 2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.345 inches and 0.395 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Width Between Flats | Between 0.429 inches and 0.439 inches |
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.
- NAS6204P8 NAS 1/4-28 · 7/8 in · Dished hexagon · Plastic
- NAS6304-8 NAS 1/4-28 · 7/8 in · Dished hexagon · Iron
- NAS6304LU8 NAS 1/4-28 · 7/8 in · Dished hexagon · Iron
- NAS6304U8 NAS 1/4-28 · 7/8 in · Dished hexagon · Iron
- NAS6304U8D NAS 1/4-28 · 7/8 in · Dished hexagon · Iron
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Catalog data updated 2026-07-05. Report a data error