screws › socket head cap screws
NAS1351N4LL12
Socket Head Cap Screw
Description
Fastener Length: 3/4", Thread: 1/4-28, Head Width: 3/16", Thread Length: 3/4
Specifications
| Fastener Length | 0.720 inches minimum and 0.750 inches maximum |
|---|---|
| Head Diameter | 0.365 inches minimum and 0.375 inches maximum |
| Head Height | 0.244 inches minimum and 0.250 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 3/4 |
| Locking Feature | Strip threads |
| Material | Iron |
| Material Specification | Ams 5731 assn std single material response fastener or ams 5737 assn std single material response fastener |
| Min. Tensile Strength (psi) | 160000 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 fastener |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.649 inches minimum and 0.750 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNRF |
| Thread Size | 1/4 |
| Width Across Flats | 0.1875 inches minimum and 0.1900 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1351N4LL10
- NAS1351N4LL12
- NAS1351N4LL14
- NAS1351N4LL36
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.
- NAS1351-4LB12P NAS 1/4-28 · 3/4 in · Flat chamfer · Steel
- NAS1351C4-12P NAS 1/4-28 · 3/4 in · Flat chamfer · CRES
- NAS1351C4LE12 NAS 1/4-28 · 3/4 in · Flat chamfer · Plastic
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Catalog data updated 2026-07-05. Report a data error