Holo-krome 86003 Button Socket Cap Screw M3x0.50 10mm

Product Description

The HOLO-KROME 86003 is a metric button socket cap screw designed for applications requiring a low-profile head with high clamping strength. Manufactured from Grade 12.9 alloy steel with a black oxide finish, this fastener delivers hardness of 38 HRC and resists corrosion in moderate service environments. The hex socket drive accepts a 2.00mm hex key for installation in confined spaces where a standard hex head wrench cannot reach. Fully threaded along its 10mm length under head, it provides consistent thread engagement across the full fastener body. Thread size is M3x0.50, conforming to metric standards. Typically installed by mechanical assemblers, maintenance technicians, and industrial fabricators.

This fastener is suited for light-to-medium duty mechanical assemblies where a smooth, rounded head profile is needed to minimize snagging or contact interference. Common applications include panel mounting, equipment enclosures, robotics, tooling fixtures, and precision mechanical assemblies. The black oxide finish provides a clean, low-reflectance appearance while offering mild corrosion protection in dry or lightly oiled environments. Thread fit classes of 4G and 6G allow use in both standard and close-tolerance metric tapped holes.

Key Features

• Grade 12.9 alloy steel construction with 38 HRC hardness for high tensile and shear strength
• Black oxide finish for mild corrosion resistance and low-reflectance appearance
• Button head profile reduces snagging and interference in assembled equipment
• 2.00mm hex socket drive suits installation in tight or recessed locations
• Fully threaded body for maximum thread engagement in shallow tapped holes
• Conforms to ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style metric button socket cap screw for use in M3x0.50 tapped holes conforming to metric thread standards with 4G or 6G thread fit classes.

Installation Notes

Installation requires a 2.00mm hex key or hex socket driver. Ensure the receiving tapped hole is clean and free of debris before driving the fastener. Do not exceed the recommended seating torque for Grade 12.9 M3 fasteners as specified by the applicable ANSI/ASME or equipment manufacturer guidelines. Inspect threads for damage before installation and discard any fastener showing deformation or corrosion.