screws › machine screws
MS27039-5-18
Military Standard Machine Screw
Description
length: 1.172", grip: 0.594", thread: 5/16-24, pan head structural screw, Cadmium plated steel, MS27039 series screw
Specifications
| Fastener Length | Between 1.157 inches and 1.204 inches |
|---|---|
| Hardness Rating | Between 26.0 rockwell c and 32.0 rockwell c |
| Head Diameter | Between 0.594 inches and 0.615 inches |
| Head Height | Between 0.203 inches and 0.218 inches |
| Head Style | Pan Head |
| Internal Drive Style | Cross recess type 1 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel comp 4037 or steel comp 8630 |
| Screw Material Specification | Ams6300 assn standard 1st material response or mil-s-6050 military specification 2nd material response |
| Screw Surface Treatment | Cadmium and chromate |
| Screw Surface Treatment Specification | Cl3 federal specification single treatment response ty2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.548 inches and 0.625 inches |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| 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 MS27039-5-18. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error