Holo-krome 87204 M12x1.75 Flat Socket Cap Screw 12.9

Product Description

The HOLO-KROME 87204 is a metric flat socket cap screw designed for flush or countersunk fastening applications where a low-profile head is required. Built from 12.9 grade alloy steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance in a compact head profile. 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. Thread size is M12x1.75, with an overall length of 50.00 mm and full threading along the shank. Machinists, millwrights, and maintenance technicians commonly specify this fastener in structural assemblies, tooling fixtures, and machine frames.

This screw is suited for metric fastening in industrial machinery, manufacturing equipment, precision tooling, and structural assemblies where a countersunk fastener is specified. The 12.9 material grade makes it appropriate for high-load, high-stress joint applications that demand maximum clamping force. The black oxide finish provides a clean appearance and light surface protection in dry or lightly oiled environments. This fastener is sold individually per package with a minimum order quantity of 5 units.

Key Features

• 90-degree flat head profile for flush countersunk installation
• 12.9 alloy steel construction for maximum tensile and proof load ratings
• Black oxide finish for light corrosion protection and reduced surface reflectivity
• 8.00 mm hex socket drive for standard hex key or bit socket installation
• Fully threaded shank along the 50.00 mm overall length
• Conforms to ANSI B1.13M and ISO 10642 fastener standards

Compatibility

Designed as a metric countersunk fastener conforming to ANSI B1.13M and ISO 10642, suitable for M12x1.75 threaded holes requiring a 90-degree flat head seat and 4G thread fit class.

Installation Notes

Installation is performed by machinists or maintenance technicians using an 8.00 mm hex key or drive bit. Countersunk holes must be machined to a 90-degree included angle to match the head geometry. De-energize and lock out all equipment before fastener removal or installation on any live machine. Do not substitute lower-grade fasteners in applications engineered for 12.9 material grade.