Holo-krome 87220 Flat Socket Cap Screw M16x2 12.9 Alloy Steel

Product Description

The HOLO-KROME 87220 is a metric flat socket cap screw engineered for applications requiring a flush or countersunk fastener profile. It features a 90-degree flat head with a 10 mm hex socket drive and is manufactured from 12.9 grade alloy steel with a black oxide finish. The M16x2 thread is fully threaded over the 60 mm overall length, conforming to ANSI B1.13M and ISO 10642 standards. The 12.9 material grade indicates high tensile strength, making this fastener suitable for demanding mechanical assemblies. Licensed trades and precision fabricators specify this type of screw when a low-profile head and high-strength clamping force are both required.

This flat socket cap screw is used in mechanical, industrial, and structural assemblies where the fastener head must sit flush with or below the mating surface. Typical applications include machine frames, tooling fixtures, equipment housings, and structural steel connections. The black oxide finish provides moderate corrosion resistance and reduces light reflection, which suits both interior industrial environments and low-visibility assemblies. The fully threaded configuration allows engagement across the full grip range of standard M16 clearance holes.

Key Features

• 90-degree flat head profile seats flush in standard countersunk holes
• 10 mm hex socket drive for high-torque installation with standard hex keys or socket tooling
• 12.9 alloy steel grade delivers high tensile and proof load capacity
• Fully threaded M16x2 shank maximizes thread engagement across the full length
• Black oxide finish reduces surface reflectivity and provides light corrosion protection
• Conforms to ANSI B1.13M and ISO 10642 fastener standards

Compatibility

Designed as a metric replacement or service fastener for M16x2 countersunk hex socket applications conforming to ISO 10642 and ANSI B1.13M dimensional standards.

Installation Notes

Installation should be performed by qualified mechanical trades using a calibrated hex key or socket driver sized to the 10 mm drive. The mating surface must be properly countersunk to the 90-degree included angle before installation. Power down and de-energize any associated equipment before fastener service. Do not substitute for structural applications without verifying the required fastener grade against the assembly specification.