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MS16998-58
Hexagon Socket Cap Screw
Description
Fastener Length: 7/8", Head Width: 1/4"
Specifications
| Drive Style | Hexagon |
|---|---|
| Fastener Length | Between 0.844 inches and 0.875 inches |
| Finish | Cadmium ll |
| Hardness Rating | 36.0 rockwell c and 45.0 rockwell c |
| Head Diameter | Between 0.457 inches and 0.468 inches |
| Head Height | Between 0.306 inches and 0.312 inches |
| Head Style | Flat chamfer |
| Internal Drive Style | Hexagon |
| Length | 7/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Minimum Yield Strength | 130000 pounds per square inch |
| Nondefinitive Specification/Std Data | 6 type |
| Size | 5/16-24 |
| 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 | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.773 inches and 0.875 inches |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 1/4 |
| Thread Type | N.F. - Fine |
| Width Across Flats | Between 0.250 inches and 0.253 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS16998-58. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error