screws › machine screws
NAS514P428-30P
Screw
Description
Fastener Length: 1-7/8", Thread: 1/4-28, Thread Length: 1-7/8"
Specifications
| Countersink Angle | 100.0 degrees |
|---|---|
| Fastener Length | 1.875 |
| Features Provided | Casehardened |
| Head Diameter | 0.447 inches minimum and 0.507 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1 7/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel |
| Screw Material Specification | Mil-s-7839 mil spec single material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416,type 2 class b mil spec single treatment response |
| Specification Data | 80205-nas514 government standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 1.875 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
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 NAS514P428-30P. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error