bolts › close tolerance bolts
NAS1578V4T4
Bolt
Description
Fastener Length: 21/32", Thread: 1/4-28, Thread Length: 3/8"
Specifications
| Fastener Length | 0.638 inches minimum and 0.668 inches maximum |
|---|---|
| Grip Diameter | 0.2490 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.240 inches minimum and 0.260 inches maximum |
| Head Diameter | 0.477 inches minimum and 0.492 inches maximum |
| Head Height | 0.140 inches minimum and 0.150 inches maximum |
| Head Style | Pan no. 2 |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 21/32 |
| Material | Titanium |
| Material Specification | Ams4928 assn std single material response or ams4967 assn std single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1578 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.403 |
| 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.
- NAS1578V4T3
- NAS1578V4T4
- NAS1578V4T5
- NAS1578V4T7
- NAS1578V4T11
- NAS1578V4T13
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1578V4T4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error