screws › socket head cap screws
NAS1351-5-8P
Socket Head Cap Screw
Description
Fastener Length: 1/2", Thread: 1/4-24, Head Width: 1/4", Thread Length: 1/2", NAS1351 series screw
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 0.470 inches and 0.500 inches |
| Hardness Rating | 38.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.457 inches and 0.469 inches |
| Head Height | Between 0.306 inches and 0.312 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Material | Steel |
| Min. Tensile Strength (psi) | 170000 pounds per square inch |
| Minimum Yield Strength | 150000 pounds per square inch |
| Specification Data | 80205-nas1351 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 2 federal specification single treatment response type 2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.387 inches and 0.500 inches |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNRF |
| Thread Series Designator | UNRF |
| Thread Size | 1/4 |
| Width Across Flats | Between 0.250 inches and 0.253 inches |
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
- NAS1351C5-8 NAS 1/4-24 · 1/2 in · Flat chamfer · CRES
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error