Holo-krome 76804 Hex Socket Cap Screw M20 X 2.50 Metric

Product Description

The HOLO-KROME 76804 is a metric hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and trade service environments. Manufactured from alloy steel to material grade 12.9, it delivers exceptional tensile strength suitable for demanding assemblies. The black oxide finish provides moderate corrosion resistance and reduces light reflection. The M20 x 2.50 thread profile with a 35 mm length under head makes this a fully threaded fastener suited for through-bolt and tapped-hole installations. Installation requires a standard hex socket (Allen) drive tool. Licensed tradespeople, millwrights, and mechanical technicians are the primary installers.

This fastener is used in a wide range of industrial and mechanical assembly applications where high clamp load and reliable torque retention are critical. Fully threaded geometry makes it well suited for shorter engagement depths or applications requiring thread engagement along the full shank. Typical use cases include machine frames, structural brackets, hydraulic component mounting, and equipment maintenance repairs where metric fastener standards are required.

Key Features

• Material grade 12.9 alloy steel for high tensile and proof load performance
• Fully threaded shank provides maximum thread engagement in tapped holes
• Black oxide coating for mild corrosion resistance and reduced surface reflectivity
• Hex socket (Allen) drive for high torque input in confined spaces
• Meets ANSI B1.13M, ISO 4762, and ISO 898-1 fastener standards
• M20 x 2.50 thread pitch conforms to standard metric coarse series

Compatibility

Designed as an OEM-style replacement or service fastener for metric assemblies requiring M20 x 2.50 coarse-thread hex socket cap screws conforming to ISO 4762 and ANSI B1.13M standards.

Installation Notes

Installation is performed by qualified mechanical technicians or tradespeople using a properly sized hex socket drive tool. Always de-energize, depressurize, or lock out the equipment being serviced before removing or installing structural fasteners. Apply thread lubricant or thread-locking compound only as specified by the equipment manufacturer. Do not exceed the torque values specified in the equipment service documentation for grade 12.9 M20 fasteners.