screws › socket head cap screws
NAS1351-4H12
Socket Head Cap Screw
Description
Fastener Length: 49/64", Hole Diameter: 3/64", Thread: 1/4-28, Head Width: 3/16", Thread Length: 49/64", drilled, NAS1351 series screw
Specifications
| Fastener Length | 0.734 inches minimum and 0.766 inches maximum |
|---|---|
| Hardness Rating | 38.0 rockwell c minimum and 45.0 rockwell c 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 |
| Hole Configuration Style | Round |
| Hole Diameter | 0.047 |
| Hole Quantity | 6 |
| Hole Type | Drilled |
| Internal Drive Style | Hexagon |
| Length | 49/64 |
| Material | Steel |
| Material Specification | 66 fed std single material response |
| Min. Tensile Strength (psi) | 170000 pounds per square inch |
| Minimum Yield Strength | 150000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Specification Data | 80205-nas1351 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.663 inches minimum and 0.766 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJC |
| 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.
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1351-4H12. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error