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NAS1102E04-12
Machine Screw
Description
Fastener Length: 3/4", Thread: 4-40, Thread Length: 45/64
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Fastener Length | Between 0.719 inches and 0.75 inches |
| Head Diameter | Between 0.177 inches and 0.225 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Torque set |
| Length | 3/4 |
| Material | Iron |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | 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-nas1102 professional/industrial association standard |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.624 inches and 0.705 inches |
| 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.
- NAS1102-04-12 NAS #4-40 · 3/4 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error