screws › machine screws
MS27039C4-08
Military Standard Machine Screw
Description
Fastener Length: 9/16", Thread: 1/4-28, Thread Length: 17/32", MS27039 series screw
Specifications
| Fastener Length | Between 0.516 inches and 0.563 inches |
|---|---|
| Head Diameter | Between 0.473 inches and 0.492 inches |
| Head Height | Between 0.162 inches and 0.175 inches |
| Head Style | Pan Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 9/16 |
| Material | Iron |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5735 assn standard single material response |
| Thread Class | 3a |
| Thread Diameter | 0.25 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.381 inches and 0.531 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | Unf (fine thread) |
| 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.
- MS27039DD4-08 MS 1/4-28 · 9/16 in · Pan Head · Aluminum
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Catalog data updated 2026-07-05. Report a data error