Hexagon Socket Button Head Cap Screws
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| Model： | Hexagon Socket Button Head Cap Screws |
| Features： | Used where there needs certain tension; it is not impeditive because of the lower head than Hexagon Socket Screws. |
| According To： | ISO 7380，ANSI/ASME B18.3 |
| Material： | Alloy Steel SCM435 |
| Strength Grade： | 10.9 |
| Hardness： | HRC 34~43 |
| Surface Treatment： | Black Oxide |
| Specification： | ISO：M3~M12，ANSI：NO.4#~5/8" |