Holo-krome 87180 Flat Socket Cap Screw M12x1.75 20mm

Product Description

The HOLO-KROME 87180 is a metric flat socket cap screw designed for flush or countersunk fastening applications requiring high clamping strength in confined spaces. Built from 12.9 grade alloy steel with a black oxide finish, it delivers tensile strength suited to heavy-load mechanical assemblies. The 90-degree flat head seats cleanly into countersunk holes, and the 8.00 mm hex socket drive accepts a standard hex key for installation. At M12x1.75 thread size with a 20.00 mm overall length, this screw is fully threaded and conforms to ANSI B1.13M and ISO 10642 fastener standards. Licensed tradespeople and industrial maintenance technicians working with precision mechanical assemblies rely on this grade for critical joint connections.

This fastener is used in metric-threaded assemblies across industrial machinery, structural brackets, tooling fixtures, and equipment frames where a low-profile countersunk head is required. The 12.9 material grade makes it appropriate for high-stress bolted joints in both static and dynamic load environments. The black oxide coating provides mild corrosion resistance and reduces light reflection in precision or optical assembly contexts. Sold individually, with a minimum order quantity of 5 units per order.

Key Features

• 12.9 alloy steel construction for high tensile strength in critical fastening applications
• 90-degree flat head with 26.88 mm head diameter for flush countersunk seating
• 8.00 mm hex socket drive compatible with standard metric hex keys
• Fully threaded M12x1.75 shank at 20.00 mm overall length
• Black oxide finish for mild corrosion resistance and low-reflectance surface
• Meets ANSI B1.13M and ISO 10642 fastener standards; Thread Fit Class 4G

Compatibility

Designed for use in metric-threaded countersunk hole applications conforming to ISO 10642 and ANSI B1.13M standards with M12x1.75 thread specification.

Installation Notes

Installation should be performed by qualified mechanical or maintenance tradespeople using a calibrated 8.00 mm hex key or socket driver. Ensure the mating countersunk hole is machined to the correct 90-degree included angle to achieve proper head seating before torquing. De-energize and lock out any machinery before fastener replacement or maintenance work. Do not reuse fasteners that show signs of thread damage, galling, or deformation.