screws › hexagon head cap screws
MS90726-38
Hexagon Head Cap Screw
Description
Fastener Length: 1-1/2", Thread: 5/16-24, Thread Length: 63/64", MS90726 series screw
Specifications
| End Application | Hx unique; close in weapon system (ciws-phalanx) ah-1w; aircraft advance attack mh-53e; chilled water a/c systems; helicopter military standard family; helicopter diesel 15kw fire/crash p2; generator h-3 helicopter; truck b-52 aircraft; support equipment military standard family; support equipment diesel 30kw generator |
|---|---|
| Fastener Length | Between 1.438 inches and 1.500 inches |
| Finish | Cadmium ll |
| Hardness Rating | 25.0 rockwell c and 34.0 rockwell c |
| Head Height | Between 0.195 inches and 0.211 inches |
| Head Style | Hexagon Head |
| Length | 1 1/2 |
| Material | Steel |
| Material Specification | Sae j429 assn standard all material responses |
| Min. Tensile Strength (psi) | 120000 pounds per square inch |
| Nondefinitive Specification/Std Data | 2 type and 10p style and 5 grade |
| Size | 5/16-24 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Type 2 cl 2 federal specification single treatment response qq-p-416 |
| Thread Class | 2a |
| Thread Diameter | 0.312 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.875 inches and 1.062 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 Between Flats | Between 0.489 inches and 0.500 inches |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS35308-336 MS 1/4-24 · 0.073 in · Hexagon Head · CRES
- MS90726-37 MS 1/4-24 · 0.073 in · Hexagon Head · Steel
- MS90726-39 MS 1/4-24 · 0.073 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error