screws › hexagon head cap screws
MS90728-3
Hexagon Head Cap Screw
Description
Fastener Length: 15/32", Thread: 1/4-20, Thread Length: 11/32
Specifications
| Fastener Length | 0.469 inches minimum and 0.500 inches maximum |
|---|---|
| Finish | Cadmium ll |
| Head Height | 0.150 inches minimum and 0.163 inches maximum |
| Head Style | Hexagon Head |
| Length | .50, 1/2 |
| Material | Steel |
| Material Specification | Sae j429 grade 8 assn std single material response or astm a354 grade bd assn std single material response |
| Min. Tensile Strength (psi) | 150000 pounds per square inch |
| Size | 1/4-20 |
| Surface Finish | 63.0 microinches threads |
| Surface Treatment | Zinc and chromate |
| Surface Treatment Specification | Astm b633 ty 2 sc 3 assn std single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Fraction | 1/4-20 |
| Thread Length | 0.344 inches minimum and 0.500 inches maximum |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series Designator | UNC |
| Thread Size | 1/4 |
| Thread Type | N.C. - Coarse |
| Width Between Flats | 0.428 inches minimum and 0.438 inches maximum |
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.
- B1821BH025C050L Other 1/4-20 · 1/2 in · Hexagon Head · Plastic
- B1821BH025C050N Other 1/4-20 · 1/2 in · Hexagon Head · Steel
- MS90725-3 MS 1/4-20 · 1/2 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error