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The HOLO-KROME 76336 is a metric hex socket cap screw designed for high-strength mechanical fastening in industrial, trade, and OEM assembly applications. It features an M10 x 1.50 thread and a 70 mm length under head with partial threading, allowing the unthreaded shank to bear shear loads. Manufactured from alloy steel with a black oxide coating, this fastener meets the material grade 12.9 specification, indicating exceptional tensile and proof-load strength. Licensed HVAC, mechanical, and industrial contractors rely on grade 12.9 fasteners when standard hardware grades are insufficient for the joint requirements.
This screw is suited for mechanical assemblies, equipment mounting, and structural fastening where high clamping force and precision thread engagement are required. The partial threading design makes it appropriate for applications demanding a close-tolerance shank fit through clearance holes. The black oxide finish provides a degree of corrosion resistance in low-moisture environments and reduces light reflection in precision applications. Typical install scenarios include HVAC equipment frames, pump and compressor mounting, and general industrial machinery assembly.
Designed as a standard metric hex socket cap screw conforming to DIN 912 and ISO 4762 dimensional standards, making it a direct fit wherever those specifications are called out in an assembly or service manual.
Installation should be performed by a qualified mechanic or trade professional using a calibrated hex key or socket driver sized for the M10 socket. De-energize and lock out all equipment before removing or installing fasteners in powered assemblies. Do not mix metric and inch-series fasteners in the same joint. Apply thread lubricant only when specified by the equipment manufacturer, as lubrication changes the torque-tension relationship for grade 12.9 hardware.
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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