bolts › machine bolts
NAS1790-4R3
Bolt
Description
Fastener Length: 39/64", Thread: 1/4-28, Thread Length: 27/64"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.613 |
| Grip Diameter | 0.189 nominal inches |
| Grip Length | 0.188 nominal inches |
| Head Diameter | 0.464 inches minimum and 0.506 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 39/64 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Part Name Assigned By Controlling Agency | Bolt, 100 degree flush head, 160,000 psi uts |
| Surface Treatment | Cadmium |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.425 |
| 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.
- NAS1790-4R3
- NAS1790-4R6
- NAS1790-4R7
- NAS1790-4R8
- NAS1790-4R9
- NAS1790-4R11
- NAS1790-4R22
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1790-4R3. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error