Holo-krome 87172 Flat Socket Cap Screw M10x1.5 45mm

Product Description

The HOLO-KROME 87172 is a metric flat socket cap screw designed for applications that require a flush or countersunk fastener profile. It features a 90-degree flat head with a hex socket drive and is machined from 12.9 grade alloy steel, making it one of the highest-strength classifications available in the metric fastener system. The black oxide finish provides mild corrosion resistance and reduces light reflection on installed assemblies. With an M10x1.5 thread and a 45 mm overall length, this screw is fully threaded and conforms to ANSI B1.13M and ISO 10642 standards. It is installed by mechanical contractors, millwrights, and equipment technicians working on precision assemblies requiring high clamp load in a low-profile fastener format.

This flat socket cap screw suits metric fastening applications in industrial machinery, structural assemblies, and equipment frames where a countersunk head is required to sit flush with or below the mating surface. The 90-degree flat head geometry is compatible with standard metric countersunk holes. Its fully threaded shank provides consistent engagement across the full 45 mm length, making it well suited for through-hole applications and thinner material stacks. The 4G thread fit class ensures controlled thread tolerance for reliable assembly in production and field service environments.

Key Features

• 90-degree flat head with 6 mm hex socket drive for countersunk installation
• 12.9 alloy steel construction provides high tensile and proof load capacity
• Fully threaded M10x1.5 shank over 45 mm overall length
• Black oxide finish for mild corrosion resistance and low-reflectance appearance
• Conforms to ANSI B1.13M and ISO 10642 fastener standards
• 4G thread fit class for precise metric thread tolerance control

Compatibility

Designed as an OEM-style metric flat socket cap screw for use in standard M10x1.5 countersunk threaded applications conforming to ISO 10642 and ANSI B1.13M specifications.

Installation Notes

Installation requires a 6 mm hex socket key or hex bit driver. Always ensure the mating countersunk hole is machined to the correct 90-degree angle to achieve full head seating. De-energize and lock out any equipment before fastener installation or removal per applicable OSHA lockout-tagout procedures. Do not substitute an impact driver without a torque-limiting socket, as 12.9 grade fasteners are susceptible to overtorque fracture.