screws › machine screws
NAS1801-4D11
Screw
Description
Fastener Length: 11/16", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 11/16"
Specifications
| Bearing Surface Of Head Surface Finish | 63.0 microinches |
|---|---|
| Fastener Length | 0.700 |
| Features Provided | Finished head |
| Head Height | 0.125 inches minimum and 0.140 inches maximum |
| Head Hole Configuration Style | Hexagon corners |
| Head Style | Dished hexagon |
| Hole Diameter | 0.046 inches minimum |
| Hole Quantity | 3 |
| Internal Drive Style | Cross recess type ii |
| Length | 11/16 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Steel comp 4340 |
| Screw Surface Treatment | Cadmium |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.688 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
| Thread Surface Finish | 32.0 microinches |
| Width Between Flats | 0.367 inches minimum and 0.376 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 NAS1801-4D11. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error