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MS16997-68
1/4-20X2 1/2 MS16997 Military Socket Head Cap Screw Cadmium Yellow DFAR
Description
MS 16997-68 Hexagon Socket Cap Screw
Specifications
| Diameter | 1/4 |
|---|---|
| Drive | Socket |
| Fastener Length | 2.460 inches minimum and 2.500 inches maximum |
| Finish | Cadmium Yellow, Cadmium ll |
| Full Size | 1/4-20 x 2 1/2 |
| Hardness Rating | 36.0 rockwell c minimum and 45.0 rockwell c maximum |
| Head Diameter | 0.365 inches minimum and 0.375 inches maximum |
| Head Height | 0.244 inches minimum and 0.250 inches maximum |
| Head Style | Flat chamfer, Socket Head |
| Internal Drive Style | Hexagon |
| Length | 2 1/2 |
| Material | Steel |
| MilspecPart | MS16997 |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Size | 1/4-20 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 3 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.960 inches minimum and 1.000 inches maximum |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNC |
| Thread Type | N.C. - Coarse, UNC |
| Threads Per Inch | 20 |
| U.O.M. | Imperial |
| Width Across Flats | 0.187 inches minimum and 0.190 inches maximum |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error