screws › socket head cap screws
MS16998-101
Hexagon Socket Cap Screw
Description
Fastener Length: 2-1/2", Thread: 1/2-20, Head Width: 3/8", Thread Length: 1-1/2
Specifications
| Fastener Length | 2.440 inches minimum and 2.500 inches maximum |
|---|---|
| Finish | Cadmium ll |
| Hardness Rating | 38.0 rockwell c minimum and 45.0 rockwell c maximum |
| Head Diameter | 0.735 inches minimum and 0.750 inches maximum |
| Head Height | 0.492 inches minimum and 0.500 inches maximum |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 2 1/2 |
| Material | Steel |
| Min. Tensile Strength (psi) | 170000 pounds per square inch |
| Minimum Yield Strength | 150000 pounds per square inch |
| Size | 1/2-20 |
| Specification Data | 80205-nas1351 professional/industrial association standard |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416,ty 2 cl 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | 1.500 inches minimum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNRF |
| Thread Size | 1/2 |
| Thread Type | N.F. - Fine |
| Width Across Flats | 0.375 inches minimum and 0.379 inches maximum |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error