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MS16997-58
1/4-20X1/2 MS16997 Military Socket Head Cap Screw Cadmium Yellow DFAR
Description
Fastener Length: 1/2", Thread: 1/4-20, Head Width: 3/16", Thread Length: 1/2"
Specifications
| Diameter | 1/4 |
|---|---|
| Drive | Socket |
| Drive Style | Hexagon |
| Fastener Length | Between 0.469 inches and 0.50 inches |
| Finish | Cadmium Yellow, Cadmium ll |
| Full Size | 1/4-20 x 1/2 |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.365 inches and 0.375 inches |
| Head Height | Between 0.244 inches and 0.25 inches |
| Head Style | Flat chamfer, Socket Head |
| Internal Drive Style | Hexagon |
| Length | 1/2 |
| Material | Steel |
| MilspecPart | MS16997 |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Size | 1/4-20 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Class 3 federal specification all treatment responses type 2 qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.369 inches and 0.50 inches |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 1/4 |
| Thread Type | N.C. - Coarse, UNC |
| Threads Per Inch | 20 |
| U.O.M. | Imperial |
| Width Across Flats | Between 0.188 inches and 0.190 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS16997-58. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error