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MS27039-5-40
Military Standard Screw
Description
Fastener Length: 2-37/64", Thread: 1/4-24, Thread Length: 5/8"
Specifications
| Fastener Length | 2.532 inches minimum and 2.579 inches maximum |
|---|---|
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Diameter | 0.594 inches minimum and 0.615 inches maximum |
| Head Height | 0.203 inches minimum and 0.218 inches maximum |
| Head Style | Pan Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 2 37/64 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel comp 4037 or steel comp 8630 |
| Screw Material Specification | Mil-s-8695 mil spec 1st material response or mil-s-6050 mil spec 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | 0.548 inches minimum and 0.625 inches maximum |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
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.
- MS27039-5-32 MS 1/4-24 · 0.086 in · Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error