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MS24693BB6
Military Standard Machine Screw
Description
black brass, length: 1/2", thread: 4-40, countersunk, flat head, machine screw
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 | 0.191 inches minimum and 0.225 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 |
| Min. Tensile Strength (psi) | 55000 pounds per square inch |
| Screw Material | Copper alloy 230 or copper alloy 240 or copper alloy 260 or copper alloy 268 or copper alloy 342 or copper alloy 353 or copper alloy 360 or copper alloy 377 or copper alloy 764 or copper alloy 270 or copper alloy 274 or copper alloy 510 or copper alloy 745 or copper alloy 752 or copper alloy 770 |
| Thread Class | 2a |
| Thread Diameter | 0.112 |
| Thread Direction | Right-hand |
| Thread Length | 0.370 inches minimum and 0.420 inches maximum |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series Designator | UNC |
| 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.
- NAS514P440-8P NAS #4-40 · 1/2 in · Flat countersunk · Steel
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Catalog data updated 2026-07-05. Report a data error