Holo-krome 87184 Flat Socket Cap Screw M12x1.75 25mm

Product Description

The HOLO-KROME 87184 is a metric flat socket cap screw engineered for applications where a flush or countersunk fastener profile is required. It features a 90-degree flat head driven by an 8 mm hex socket and is fully threaded along its 25 mm overall length. Manufactured from 12.9 grade alloy steel with a black oxide finish, it delivers high tensile strength and moderate corrosion resistance. The M12x1.75 thread size conforms to ANSI B1.13M and ISO 10642 standards with a 4G thread fit class. This fastener is installed by machinists, millwrights, and maintenance technicians working on equipment assemblies that demand a low-profile fastened joint.

This screw is suited for precision mechanical assemblies, machine frames, fixtures, and structural connections where a countersunk socket head is required to sit flush with or below the mating surface. The black oxide finish reduces light reflection and provides a degree of surface protection in dry or lightly oiled environments. It is commonly used in industrial maintenance, custom fabrication, and OEM equipment manufacturing where metric hardware to ISO 10642 is specified.

Key Features

• 90-degree flat head profile allows flush or sub-flush installation in countersunk holes
• 8 mm hex socket drive for use with standard hex keys or socket bits
• 12.9 grade alloy steel construction for high tensile and proof load strength
• Fully threaded M12x1.75 shank over 25 mm overall length
• Black oxide finish for reduced reflectivity and light surface protection
• Conforms to ANSI B1.13M and ISO 10642 fastener standards with 4G thread fit class

Compatibility

Designed as a metric countersunk socket cap screw per ISO 10642 and ANSI B1.13M, suitable for M12x1.75 tapped or clearance holes requiring a 90-degree flat head fastener in alloy steel.

Installation Notes

Installation requires a properly sized countersunk hole to accept the 90-degree flat head geometry. Power down or de-energize any equipment before fastener installation or removal. Use a calibrated torque wrench appropriate for 12.9 grade M12 fasteners and follow the equipment manufacturer or applicable engineering specification for torque requirements. Avoid mixing metric and unified thread fasteners in the same tapped hole.