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MS27039-5-12
Military Standard Machine Screw
Description
Fastener Length: 53/64", Thread: 1/4-24, Thread Length: 5/8"
Specifications
| Fastener Length | 0.782 inches minimum and 0.829 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 | 53/64 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel comp 4037 or steel comp 8630 |
| Screw Material Specification | Ams 6300 assn std 1st material response or mil-s-6050 mil spec 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Qq-p-416 ty 2 cl 3 fed spec single treatment response |
| 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
No interchangeable or dimensionally similar parts are on record for MS27039-5-12. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error