bolts › close tolerance bolts
NAS1578C4H3
Bolt
Description
Fastener Length: 19/32", Thread: 1/4-28, Thread Length: 3/8"
Specifications
| Fastener Length | 0.585 inches minimum and 0.605 inches maximum |
|---|---|
| Grip Diameter | 0.2490 inches minimum and 0.2495 inches maximum |
| Grip Length | 0.177 inches minimum and 0.197 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 | High-torque |
| Length | 19/32 |
| Material | Iron |
| Material Specification | Ams 5731 assn std single material response or ams 5735 assn std single material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Specification Data | 80205-nas1578 professional/industrial association standard |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| 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 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1578C4H3. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error