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NAS1801-4-24
Machine Screw
Description
Fastener Length: 1-17/32", Thread: 1/4-28, Thread Length: 1-31/64", NAS1801 series screw
Specifications
| Fastener Length | Between 1.484 inches and 1.531 inches |
|---|---|
| Head Height | Between 0.125 inches and 0.140 inches |
| Head Style | Hexagon Head |
| Internal Drive Style | Cross recess type iii |
| Material | Steel |
| Material Specification | Ams6382 or ams6415 or ams6322 assn standard single material response |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Class 2 assn standard single treatment response type ii ams qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 1.420 inches and 1.499 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Width Between Flats | Between 0.367 inches and 0.376 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1801-4-24. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error