Holo-krome 76496 Hex Socket Cap Screw M20 X 2.50 Metric

Product Description

The HOLO-KROME 76496 is a metric hex socket cap screw engineered for high-strength fastening applications in industrial, mechanical, and trade assembly work. Sized at M20 x 2.50 with a 55 mm length under head, this fastener is fully threaded and driven by a standard hex socket tool. Manufactured from alloy steel at a material grade of 12.9, it delivers the tensile and yield strength required for demanding bolted joints. The black oxide finish provides a base level of corrosion resistance and reduces surface reflectivity. Machinists, millwrights, pipefitters, and maintenance technicians commonly specify this screw for equipment assembly, structural fastening, and machinery mounting tasks.

This fastener is suited for residential and commercial mechanical assemblies wherever M20 metric threading is specified. It conforms to ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards, making it appropriate for applications where internationally recognized fastener specifications are required. Grade 12.9 alloy steel construction supports use in high-load, high-torque bolted connections such as flange mounts, motor bases, pump brackets, and similar trade installations requiring a reliable, dimensionally accurate socket head cap screw.

Key Features

• M20 x 2.50 thread size with 55 mm length under head
• Fully threaded shaft for maximum thread engagement across the joint
• Grade 12.9 alloy steel construction for high tensile and proof load capacity
• Black oxide finish for moderate corrosion resistance and clean appearance
• Hex socket drive for use with standard Allen or hex key tooling
• Compliant with ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards

Compatibility

Designed as an OEM-style and aftermarket replacement metric socket cap screw for any application specifying an M20 x 2.50 fully threaded hex socket fastener at Grade 12.9 to DIN 912 or ISO 4762 dimensional standards.

Installation Notes

Installation should be performed by a qualified mechanic, millwright, or maintenance technician using a properly sized hex socket key or driver. Always clean and inspect threaded bores before installation, and confirm thread pitch compatibility before engaging the fastener. De-energize, depressurize, or lock out any equipment before replacing or installing fasteners in load-bearing or pressurized assemblies. Do not exceed torque values specified by the equipment manufacturer or applicable fastener standards for Grade 12.9 M20 hardware.