screws › hexagon head cap screws
MS90727-166
Hexagon Head Cap Screw
Description
Fastener Length: 2-1/2", Thread: 5/8-18, Thread Length: 1-1/2
Specifications
| End Application | Mrap |
|---|---|
| Fastener Length | 2.500 |
| Finish | Cadmium ll |
| Hardness Rating | 32.0 rockwell c and 38.0 rockwell c |
| Head Height | 0.378 mils and 0.403 centimeters |
| Head Style | Hexagon Head |
| Length | 2 1/2 |
| Material | Steel |
| Material Specification | Sae gr 8 assn standard single material response |
| Min. Tensile Strength (psi) | 150000 pounds per square inch |
| Minimum Yield Strength | 120000 pounds per square inch |
| Part Name Assigned By Controlling Agency | Unc (coarse thread) 2a 5/8-11 x 2.500 hex head cap screw |
| Size | 5/8-18 |
| Surface Treatment | Zinc and chromate |
| Surface Treatment Specification | Astm b633 type 2 sc 3 assn standard single treatment response |
| Thread Class | 2a |
| Thread Diameter | 0.625 |
| Thread Direction | Right-hand |
| Thread Length | Between 1.500 inches and 1.688 inches |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | UNF |
| Thread Series Designator | Unf (fine thread) |
| Thread Size | 5/8 |
| Thread Type | N.F. - Fine |
| Width Between Flats | Between 0.922 inches and 0.938 inches |
Cross-reference
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Catalog data updated 2026-07-05. Report a data error