Holo-krome 76004 Hex Socket Cap Screw M3 X 0.50 Alloy Steel

Product Description

The HOLO-KROME 76004 is a metric hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and equipment manufacturing. Manufactured from alloy steel to a material grade of 12.9, this screw delivers exceptional tensile strength for demanding environments. The M3 x 0.50 thread profile with a 5 mm length under head makes it suitable for compact assemblies where space is limited. A black oxide coating provides moderate corrosion resistance and reduces light reflection in precision applications. This screw is fully threaded from the underside of the head to the tip, allowing maximum thread engagement across the full fastening length. Installed using a hex drive, it is compatible with standard hex keys and socket drive tools commonly used by machinists, maintenance technicians, and assembly professionals.

This fastener is used in light mechanical assemblies, precision equipment, jigs and fixtures, and industrial machinery where a small-diameter, high-strength metric cap screw is required. The M3 thread size is common in electronics enclosures, instrumentation hardware, and machine tool components. Its fully threaded configuration suits thin-material fastening where partial threading would leave unengaged thread length. Compliance with ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards makes this screw a direct fit for applications specifying metric socket head cap screws to international fastener standards.

Key Features

• Grade 12.9 alloy steel construction for maximum tensile and shear strength
• Fully threaded along the entire shank for consistent thread engagement
• Black oxide finish provides moderate corrosion resistance and low reflectivity
• Hex socket drive compatible with standard metric hex keys and socket tools
• Meets ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 fastener standards
• M3 x 0.50 thread pitch suited for compact and precision assemblies

Compatibility

Designed as an OEM-style replacement or standard-specification metric hex socket cap screw for any application requiring an M3 x 0.50 thread, 5 mm length under head, grade 12.9 fastener conforming to DIN 912 or ISO 4762 standards.

Installation Notes

Installation should be performed by qualified mechanical or maintenance technicians using a correctly sized metric hex key or socket driver to avoid rounding the drive recess. Always verify thread engagement depth and mating material compatibility before final torque application. Ensure the mating threaded hole or nut meets the same metric standard to prevent cross-threading. Black oxide finish is not a heavy-duty corrosion barrier; apply thread sealant or anti-seize if the assembly will be exposed to moisture or corrosive environments.