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NAS1351C4-12
3/4 Inch Length NAS1351 Undrilled Socket Head Screw
Description
Fastener Length: 3/4", Thread: 1/4-28, Head Width: 3/16", Thread Length: 3/4", NAS1351 series screw
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Drive Style | Hexagon |
| Fastener Length | Between 0.720 inches and 0.750 inches |
| Hardness Rating | 80.0 rockwell b |
| Head Diameter | Between 0.365 inches and 0.375 inches |
| Head Height | Between 0.244 inches and 0.250 inches |
| Head Style | Flat chamfer |
| Head Type | Socket |
| Industry Standards/Certification | NAS1351 |
| Internal Drive Style | Hexagon |
| Length | 3/4 in |
| Material | CRES |
| Material Specification | 66 federal standard 1st material response or 66 federal standard 2nd material response or 66 federal standard 3rd material response or 66 federal standard 4th material response or 66 federal standard 5th material response or astm a493 assn standard 6th material response |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Sold In | Per Package |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Test Data Document | Etc.). |
| Thread | 1/4-28 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.649 inches and 0.750 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNRF |
| Thread Series Designator | UNRF |
| Thread Size | 0.2500-28, 1/4 |
| Type | Fine Thread |
| Weight | .005 lb |
| Width Across Flats | Between 0.1875 inches and 0.1900 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.
- MS16996-23 MS 28.00-28 · 3/4 in · Flat chamfer · CRES
- MS16998-43 MS 28.00-28 · 3/4 in · Flat chamfer · Steel
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Catalog data updated 2026-07-05. Report a data error