bolts › machine bolts
NAS1218-04E4
Bolt
Description
Fastener Length: 31/64", Thread: 4-40, Thread Length: 1/4"
Specifications
| Fastener Length | 0.468 inches minimum and 0.498 inches maximum |
|---|---|
| Head Diameter | 0.205 inches minimum and 0.219 inches maximum |
| Head Height | 0.070 inches minimum and 0.080 inches maximum |
| Head Style | Pan Head |
| Internal Drive Style | High-torque |
| Length | 31/64 |
| Material | Iron |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5731 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Specification Data | 80205-nas1218 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.208 inches minimum and 0.258 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJC |
| Thread Size | 4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1218-04E2
- NAS1218-04E4
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1218-04E4. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error