Holo-krome 87020 Flat Socket Cap Screw M3x0.5 Alloy Steel

Product Description

The HOLO-KROME 87020 is a metric flat socket cap screw designed for flush or countersunk fastening applications in precision assemblies. It features a 90-degree flat head driven by a 2.00 mm hex socket, allowing installation in tight clearance areas where a standard socket head cap screw will not seat flush. The screw is manufactured from 12.9 grade alloy steel with a black oxide finish for corrosion resistance and reduced light reflection. Thread size is M3x0.5 with an overall length of 20.00 mm. The thread fit class is 4G, conforming to ANSI B1.13M and ISO 10642 standards. Licensed trades and assembly professionals rely on this fastener for high-strength, low-profile connections.

This fastener is suited for precision mechanical assemblies, machine components, tooling fixtures, and instrumentation where a countersunk or flush-mount installation is required. The M3x0.5 thread size makes it appropriate for light-duty structural connections and panel mounting in metric-dimensioned equipment. Its 12.9 material grade means it carries higher tensile and proof loads than standard socket cap screws, making it a fit for demanding mechanical applications in both commercial and industrial environments.

Key Features

• 90-degree flat head seats flush in standard metric countersunk holes per ISO 10642
• 2.00 mm hex socket drive for precise torque application in confined spaces
• 12.9 alloy steel construction for high tensile and proof load ratings
• Black oxide finish provides mild corrosion resistance and low-reflectance appearance
• M3x0.5 thread with 4G fit class for accurate metric thread engagement
• Conforms to ANSI B1.13M and ISO 10642 fastener standards

Compatibility

Designed as an OEM-style replacement or standard stock fastener for metric countersunk socket cap screw applications requiring an M3x0.5 thread, 90-degree flat head, and 12.9 grade alloy steel construction.

Installation Notes

Install using a calibrated 2.00 mm hex key or ball-end hex driver. Ensure the mating countersink angle matches the 90-degree head geometry before driving to seat. Power down or de-energize any equipment before replacing fasteners in electrical or mechanical enclosures. Do not reuse fasteners removed from high-stress applications without inspecting thread condition.