Holo-krome 87208 Flat Socket Cap Screw M16x2 12.9

Product Description

The HOLO-KROME 87208 is a metric flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. Built from 12.9 grade alloy steel with a black oxide finish, it delivers high tensile strength and moderate corrosion resistance in demanding mechanical assemblies. The 90-degree flat head seats flush into countersunk holes, eliminating protrusion above the mating surface. Drive engagement is via a 10 millimeter hex socket, allowing high torque input with standard Allen tooling. The screw is fully threaded at M16x2 with an overall length of 35 millimeters, conforming to ANSI B1.13M and ISO 10642 fastener standards.

This fastener is suited for machine assemblies, structural fixtures, tooling plates, and industrial equipment where a low-profile or flush-mount fastening solution is required. The 12.9 material grade makes it appropriate for high-load, high-stress joints in metalworking, automation, and general manufacturing environments. Machinists, millwrights, and maintenance technicians are the typical installers. It is sold individually, making it practical for replacement and maintenance work as well as small-batch production builds.

Key Features

• 12.9 alloy steel construction provides high tensile and proof load strength for demanding joint applications
• 90-degree flat head seats flush into countersunk holes, eliminating surface protrusion
• 10 millimeter hex socket drive accepts standard Allen keys and hex bit drivers
• Black oxide finish offers moderate corrosion resistance and reduced light reflection
• Fully threaded M16x2 shank with 4G thread fit class for consistent engagement
• Conforms to ANSI B1.13M and ISO 10642 standards for dimensional and material compliance

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for metric countersunk hex socket applications requiring an M16x2 thread size and ISO 10642 dimensional compliance.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 10 millimeter hex key or Allen bit driver. Ensure the mating countersunk hole is machined to the correct 90-degree included angle and diameter to achieve full head seating. De-energize or lock out any equipment before fastener replacement per applicable OSHA lockout/tagout procedures. Do not exceed the torque rating appropriate for 12.9 grade M16 fasteners as specified by the governing fastener standard or equipment manufacturer.