Button Head Socket Cap Screws: Metric, Black Oxide Finish, Alloy Steel

Button head cap screws are normally used in light fastening applications where materials are too thin to countersink. Heat treatment to high tensile ensures optimum torque capability. Used where appearance is important.

Applications:

• Gauges
• Machine cover (guards)
• External sheet metal parts
• Hinges
• Light and medium fasteners
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  Significant Features
• Forged sockets usable to full depth
• Smooth, low contour forged head for clean assembly of thin sections
• Unified standard threads are Class 3A UNRC and UNRF with Holo-Krome controlled radius roots and radius run-out
• Meets ASME and ANSI B18.3.