screws › socket head cap screws
NAS1351-6-40
Socket Head Cap Screw
Description
Fastener Length: 2-1/2", Thread: 3/8-24, Head Width: 5/16", Thread Length: 1-1/4"
Specifications
| Color | Black |
|---|---|
| Drive Style | Hexagon |
| Fastener Length | Between 2.46 inches and 2.5 inches |
| Hardness Rating | 38.0 rockwell and 45.0 rockwell |
| Head Diameter | Between 0.550 inches and 0.562 inches |
| Head Height | Between 0.368 inches and 0.375 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 2 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 | Oxide |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 1.250 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNRF |
| Thread Series Designator | UNRF |
| Thread Size | 3/8 |
| Width Across Flats | Between 0.3125 inches and 0.3160 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.
- MS16998-79 MS 3/8-24 · 0.086 in · Flat chamfer · Steel
- NAS1351-6-32P NAS 3/8-24 · 0.086 in · Flat chamfer · Steel
- NAS1351-6-48P NAS 3/8-24 · 0.086 in · Flat chamfer · Steel
- NAS1351-6LE36P NAS 3/8-24 · 0.086 in · Flat chamfer · Plastic
- NAS1351N6-44 NAS 3/8-24 · 0.086 in · Flat chamfer · Iron
- NAS1351N6-48 NAS 3/8-24 · 0.086 in · Flat chamfer · Iron
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Catalog data updated 2026-07-05. Report a data error