Holo-krome 86045 Button Socket Cap Screw M8x1.25 20mm

Product Description

The HOLO-KROME 86045 is a metric button socket cap screw designed for applications requiring a low-profile head with high clamping strength. Featuring an M8x1.25 thread and 20mm length under head, this screw is fully threaded and manufactured from Grade 12.9 alloy steel with a black oxide finish. The hex socket drive accepts a 5mm hex key. At Grade 12.9, this fastener delivers tensile strength suitable for demanding mechanical assemblies in industrial, OEM, and equipment manufacturing environments. Licensed trades and machine shops rely on this grade for high-load bolted joints where standard fasteners fall short.

This button socket cap screw is suited for light machinery, frame assemblies, fixture mounting, and panel attachments where a low-profile head is required to clear adjacent components. The black oxide finish provides mild corrosion resistance in dry or lightly oiled environments. Typically used in production assembly, maintenance, and repair operations across industrial and mechanical trades. Sold as individual units with a minimum order quantity of 100 pieces per order.

Key Features

• Grade 12.9 alloy steel for high tensile and proof load performance
• Button head profile reduces interference with surrounding components
• 5mm hex socket drive for standard hex key installation
• Black oxide finish provides mild corrosion resistance and reduced light reflection
• Fully threaded M8x1.25 shank with right-hand thread direction
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style and general-use metric button socket cap screw conforming to ANSI/ASME B18.3 and ASTM F835 standards, compatible with M8x1.25 threaded bores in metallic and compatible composite assemblies.

Installation Notes

Installation is performed with a 5mm hex key or hex socket driver. Power down or de-energize any equipment before accessing fastener locations on live assemblies. Do not mix metric and unified thread hardware. Verify thread fit class compatibility with mating tapped holes before installation; this screw carries a 4G and 6G thread fit class designation.