Holo-krome 86019 M5x0.80 Button Cap Screw Grade 12.9

Product Description

The HOLO-KROME 86019 is a metric button socket cap screw designed for fastening applications where a low-profile head and high tensile strength are required. Sized M5x0.80 with a 16mm length under the head, it is fully threaded and manufactured from Grade 12.9 alloy steel - the highest standard strength grade for metric fasteners. The black oxide finish provides mild corrosion resistance and a clean appearance. The hex socket drive measures 3.00mm and accepts a standard hex key. This fastener is installed by mechanical technicians, millwrights, and field service technicians across industrial and commercial assembly applications.

This screw is suited for applications where a flush or low-profile head profile is needed and bolt spacing is tight. Common use cases include machinery guards, brackets, enclosures, and precision mechanical assemblies. The M5x0.80 thread size and metric standard make it appropriate for equipment manufactured to metric specifications. Thread fit classes 4G and 6G allow compatibility with a range of tapped metric holes. Compliance with ANSI/ASME B18.3 and ASTM F835 makes it appropriate for use in engineered assemblies requiring documented fastener standards.

Key Features

• Grade 12.9 alloy steel construction for high tensile and shear strength
• Black oxide finish for mild corrosion resistance and reduced light reflection
• Button head profile provides a low-profile seating surface
• 3.00mm hex socket drive accepts standard metric hex keys
• Fully threaded along the 16mm length under head
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed for use in metric-tapped holes sized M5x0.80 with thread fit classes 4G or 6G, per ANSI/ASME B18.3 and ASTM F835 specifications.

Installation Notes

Installation requires a 3.00mm hex key or hex socket bit driver. Ensure the receiving tapped hole is clean and free of debris before threading. Torque to the value specified by the engineering documentation for the assembly - do not rely on generic torque figures for Grade 12.9 fasteners without confirming application requirements. Hardness is rated at 38 HRC; avoid use with softer mating materials that may be damaged under full clamp load.