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The HOLO-KROME 76228 is a metric hex socket cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. Sized M8 x 1.25 with a 14 mm length under head, this screw is fully threaded and driven with a standard hex key. It is manufactured from alloy steel at material grade 12.9, making it one of the strongest classifications available for metric fasteners. The black oxide finish provides a degree of corrosion resistance and reduces light reflection in precision assemblies. Licensed tradespeople and industrial maintenance technicians specify this fastener when structural integrity and torque capacity are critical requirements.
This fastener is suited for use in machinery, equipment frames, hydraulic components, and structural mechanical assemblies where high clamp loads are required. The M8 x 1.25 thread is a standard metric coarse pitch, widely used in automotive, HVAC equipment, and industrial fabrication. Grade 12.9 alloy steel construction meets the demands of high-cycle and high-load applications. Installers sourcing replacement or production fasteners in quantity will find this screw meets ANSI B1.13M, ISO 4762, and ISO 898-1 standards.
Designed as an OEM-style and aftermarket replacement hex socket cap screw for any application specifying an M8 x 1.25 metric coarse thread, 14 mm length under head, grade 12.9 alloy steel fastener per ISO 4762 or ANSI B1.13M.
Installation should be performed by a qualified mechanic or maintenance technician familiar with metric fastener torque requirements for grade 12.9 hardware. Always de-energize, depressurize, or lock out equipment before replacing structural fasteners. Use a properly sized hex key or socket to avoid rounding the drive recess. Do not mix metric and imperial fasteners in the same assembly, and verify thread engagement depth meets engineering specifications for the application.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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