Holo-krome 76147 Hex Socket Cap Screw M5 X 0.80 70mm

Product Description

The HOLO-KROME 76147 is a metric hex socket cap screw designed for high-strength mechanical fastening applications. It features an M5 x 0.80 thread with a 70 mm length under head and is partially threaded along the shank. Manufactured from alloy steel to material grade 12.9, it carries a black oxide finish that provides moderate corrosion resistance and reduces light reflection. This fastener meets ANSI B1.13M, ISO 4762, and ISO 898-1 standards, making it a reliable choice for precision assemblies where tensile strength and dimensional consistency are critical. Installation requires a hex socket driver or Allen key sized for M5 cap screws.

This screw is suited for machine assembly, equipment fabrication, and maintenance applications across industrial, commercial, and trade environments. The grade 12.9 alloy steel construction handles high-clamp-load requirements found in mechanical sub-assemblies, brackets, and structural joints. It is commonly installed by maintenance technicians, millwrights, and mechanical contractors. The black oxide coating blends well in applications where surface appearance or low-reflectivity is a factor. This item is sold individually but carries a minimum order quantity of 100 pieces.

Key Features

• M5 x 0.80 metric thread, partially threaded shank
• 70 mm length under head for deeper engagement in thick stock
• Grade 12.9 alloy steel for high tensile and proof load capacity
• Black oxide finish for moderate corrosion resistance and low reflectivity
• Meets ANSI B1.13M, ISO 4762, and ISO 898-1 standards
• Hex socket drive for high-torque installation with standard Allen tooling

Compatibility

Designed as a standard ISO 4762 metric hex socket cap screw suitable for M5 x 0.80 threaded bores in machine assemblies, fabricated steel structures, and equipment requiring grade 12.9 fasteners.

Installation Notes

Installation should be performed with a properly sized hex socket key or driver to avoid rounding the drive recess. Always verify the receiving threaded bore matches M5 x 0.80 pitch before installation. De-energize and lock out any equipment before replacing fasteners in live mechanical assemblies. Follow applicable torque specifications from the equipment manufacturer for grade 12.9 fasteners in this thread size.