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NAS1351C5-8
Socket Head Cap Screw
Description
Fastener Length: 1/2", Thread: 1/4-24, Head Width: 1/4", Thread Length: 1/2
Specifications
| Fastener Length | 0.470 inches minimum and 0.500 inches maximum |
|---|---|
| Hardness Rating | 80.0 rockwell b minimum |
| Head Diameter | 0.457 inches minimum and 0.469 inches maximum |
| Head Height | 0.306 inches minimum and 0.312 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Material | CRES |
| Material Specification | 66 fed std all material responses or astm a493 assn std single material response |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Specification Data | 80205-nas1351 professional/industrial association standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.387 inches minimum and 0.500 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNRF |
| Thread Size | 1/4 |
| Width Across Flats | 0.250 inches minimum and 0.253 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.
- MS16998-55 MS 1/4-24 · 1/2 in · Flat chamfer · Steel
- NAS1351-5-8P NAS 1/4-24 · 1/2 in · Flat chamfer · Steel
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Catalog data updated 2026-07-05. Report a data error