screws › machine screws
MS27039C4-20
Military Standard Machine Screw
Description
Fastener Length: 1-5/16", Thread: 1/4-28, Thread Length: 37/64", MS27039 series screw
Specifications
| Fastener Length | Between 1.266 inches and 1.313 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 |
| Material | Iron |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Iron alloy 660 |
| Screw Material Specification | Ams 5732 assn standard single material response |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.501 inches and 0.578 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| 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
No interchangeable or dimensionally similar parts are on record for MS27039C4-20. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error