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NAS514P440-18P
Machine Screw
Description
Fastener Length: 1-1/8", Thread: 4-40, Thread Length: 0-63/64
Specifications
| Countersink Angle | Between 99.0 degrees and 101.0 degrees |
|---|---|
| Fastener Length | Between 1.063 inches and 1.125 inches |
| Hardness Rating | Between 26.0 rockwell c and 32.0 rockwell c |
| Head Diameter | Between 0.183 inches and 0.225 inches |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1 1/8 |
| Material | Steel |
| Material Specification | Mil-s-6050 military specification 1st material response or ams 6300 assn standard 2nd material response |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Specification Data | 80205-nas514 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Type 2 class 2 federal specification all treatment responses qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.968 inches and 1.080 inches |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNJC |
| Thread Size | 4 |
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.
- NAS1102E04-18 NAS #4-40 · 0.073 in · Flat countersunk · Iron
- NAS514P632-18 NAS #4-40 · 0.073 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error