screws › socket head cap screws
NAS1351C4-36
Socket Head Cap Screw
Description
Fastener Length: 2-1/4", Thread: 1/4-28, Head Width: 3/16", Thread Length: 1
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | 2.250 |
| 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 |
| Internal Drive Style | Hexagon |
| Length | 2 1/4 |
| Material | CRES |
| Material Specification | 66 federal standard all material responses |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| Minimum Yield Strength | 30000 pounds per square inch |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 1.000 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4 |
| Width Across Flats | Between 0.187 inches and 0.190 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.
- NAS1351-4-36P NAS 1/4-28 · 0.086 in · Flat chamfer · Steel
- NAS1351-4-48 NAS 1/4-28 · 0.086 in · Flat chamfer · Steel
- NAS1351C4-32 NAS 1/4-28 · 0.086 in · Flat chamfer · Steel
- NAS1351C4-40 NAS 1/4-28 · 0.086 in · Flat chamfer · CRES
- NAS1351N4LL36 NAS 1/4-28 · 0.086 in · Flat chamfer · Iron
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Catalog data updated 2026-07-05. Report a data error