screws › hexagon head cap screws
B1821BH063F325N
Screw
Description
Fastener Length: 3-1/4", Thread: 5/8-18, Thread Length: 1-11/16"
Specifications
| Fastener Length | 3.250 |
|---|---|
| Hardness Rating | 32.0 rockwell c minimum and 38.0 rockwell c maximum |
| Head Height | 0.378 inches minimum and 0.403 inches maximum |
| Head Style | Hexagon Head |
| Length | 3 1/4 |
| Material | Steel |
| Material Specification | Sae gr 8 assn std single material response |
| Min. Tensile Strength (psi) | 150000 pounds per square inch |
| Minimum Yield Strength | 120000 pounds per square inch |
| Surface Treatment | Zinc and chromate |
| Surface Treatment Specification | Astm b633 ty 2 sc 3 assn std single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.625 |
| Thread Direction | Right-hand |
| Thread Length | 1.500 inches minimum and 1.688 inches maximum |
| Thread Qty | 18 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series Designator | UNF |
| Thread Size | 5/8 |
| Width Between Flats | 0.922 inches minimum and 0.938 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- B1821BH063F150N
- B1821BH063F325N
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.
- MS90726-170 MS 5/8-18 · 0.099 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error