screws › socket head cap screws
MS16998-97
Hexagon Socket Cap Screw
Description
Fastener Length: 1-1/2", Thread: 1/2-20, Head Width: 3/8", Thread Length: 1-25/64", MS16998 series screw
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 1.440 inches and 1.500 inches |
| Finish | Cadmium ll |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.735 inches and 0.750 inches |
| Head Height | Between 0.492 inches and 0.500 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 1 1/2 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Size | 1/2-20 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 3 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.500 |
| Thread Direction | Right-hand |
| Thread Length | Between 1.340 inches and 1.400 inches |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/2 |
| Thread Type | N.F. - Fine |
| Width Across Flats | Between 0.375 inches and 0.379 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS16998-97. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error