Holo-krome 76220 Hex Socket Cap Screw M8 X 1.25 10mm

Product Description

The HOLO-KROME 76220 is an M8 x 1.25 metric hex socket cap screw designed for high-strength fastening applications. It features a fully threaded shank with a 10 mm length under head, manufactured from alloy steel at material grade 12.9 — the highest standard tensile strength class for metric fasteners. The black oxide finish provides moderate corrosion resistance and reduces light reflection in precision assemblies. This fastener is driven with a hex (Allen) key and is a standard choice for mechanical assemblies, equipment mounting, and maintenance work across industrial, HVAC, electrical, and plumbing trade environments.

This screw is suited for applications requiring a compact, strong fastener in confined spaces where a hex socket drive is preferred over external-drive styles. The M8 thread size and 10 mm under-head length make it appropriate for medium-duty clamping in steel or aluminum components. Trade professionals and industrial maintenance technicians commonly use this fastener when reassembling equipment housings, mounting brackets, or machinery panels that call for a metric socket cap screw to published dimensional standards.

Key Features

• Grade 12.9 alloy steel construction for high tensile and proof load strength
• Fully threaded shank along the entire 10 mm under-head length
• Black oxide coating for mild corrosion resistance and a low-reflectance finish
• Hex socket drive compatible with standard metric Allen keys and hex bit drivers
• Meets ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 dimensional and mechanical standards

Compatibility

Designed as an OEM-style and general-purpose replacement metric hex socket cap screw for any application specifying an M8 x 1.25 pitch, 10 mm length under head, grade 12.9 fastener per DIN 912 or ISO 4762.

Installation Notes

Installation should be performed by a qualified technician familiar with metric fastener torque requirements for grade 12.9 hardware. Always consult the equipment manufacturer's torque specification for M8 fasteners before tightening. Ensure mating threads are clean and free of debris before driving. Do not substitute a lower-grade fastener in any application that specifies grade 12.9.