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NAS1218-4E36
Machine Bolt
Description
Fastener Length: 2-11/16", Thread: 1/4-28, Thread Length: 7/16
Specifications
| Fastener Length | Between 2.661 inches and 2.691 inches |
|---|---|
| Head Diameter | Between 0.477 inches and 0.492 inches |
| Head Height | Between 0.140 inches and 0.150 inches |
| Head Style | Pan Head |
| Internal Drive Style | High-torque |
| Material | Iron |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5731 assn standard single material response or ams 5732 assn standard single material response or ams 5737 assn standard single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Specification Data | 80205-nas1218 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.401 inches and 0.451 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1218-4E2P
- NAS1218-4E36
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1218-4E36. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error