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NAS1102E04-8P
Screw
Description
Fastener Length: 1/2", Thread: 4-40, Thread Length: 29/64"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 0.469 inches minimum and 0.500 inches maximum |
| Head Diameter | 0.177 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Torque set |
| Length | 1/2 |
| Material | Iron |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5737 assn std single material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416 ty 2 cl 3 fed spec single treatment response |
| Specification Data | 80205-nas1102 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.374 inches minimum and 0.455 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.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS18211-33C MS #4-40 · 1/2 in · Flat countersunk
- NAS1102E04-8 NAS #4-40 · 1/2 in · Flat countersunk · Iron
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Catalog data updated 2026-07-05. Report a data error