Holo-krome 76276 Hex Socket Cap Screw M8 X 1.25 70mm

Product Description

The HOLO-KROME 76276 is a metric hex socket cap screw designed for high-strength fastening applications in mechanical, industrial, and trade installations. Manufactured from alloy steel with a black oxide coating, this fastener meets ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 standards and carries a material grade of 12.9, indicating exceptional tensile strength. The M8 x 1.25 thread size with a 70 mm length under head makes it suited for bolted assemblies requiring a reliable, partially threaded fastener driven with a hex (Allen) key. Mechanical contractors, millwrights, and maintenance technicians are the primary installers of this type of fastener.

This screw is appropriate for use in machinery assembly, HVAC equipment mounting, pump and motor bracketing, and general industrial fabrication where a socket-drive cap screw with metric threading is specified. The partially threaded shank provides a clamp zone without thread engagement in the grip area, which is standard practice for through-bolted joint assemblies. The black oxide finish provides mild corrosion resistance and reduced light reflection, commonly specified in OEM and MRO environments.

Key Features

• M8 x 1.25 metric thread, partially threaded shank for proper grip-length clamping
• 70 mm length under head for deeper reach in bolted assemblies
• Alloy steel construction, material grade 12.9 for high tensile load capacity
• Black oxide coating for mild corrosion resistance and low-reflectance surface
• Hex socket (Allen) drive for torque application in confined spaces
• Compliant with ANSI B1.13M, DIN 912, ISO 4762, and ISO 898-1 fastener standards

Compatibility

Designed as a standard metric hex socket cap screw suitable for any application specifying an M8 x 1.25, 70 mm partially threaded socket head cap screw per DIN 912 or ISO 4762.

Installation Notes

Install using a properly sized hex key or socket driver rated for the torque demands of a grade 12.9 fastener. Always ensure mating threads are clean and free of debris before installation. De-energize and lock out any equipment before fastener service per applicable OSHA lockout/tagout procedures. Do not substitute a lower-grade fastener in joints originally designed for grade 12.9 hardware.