Value Collection -42729-3 M5x0.80 Hex Socket Cap Screw

Product Description

The VALUE COLLECTION -42729-3 is a metric hex socket cap screw designed for applications requiring a high-strength, close-tolerance fastener. Manufactured from alloy steel with a black oxide finish, this screw meets DIN 912 and ISO 898-1 standards at material grade 12.9, placing it among the highest tensile strength classes for metric fasteners. The M5 x 0.80 thread and 70 mm length under head make it well suited for precision assemblies, machine components, and structural joints where a flush, recessed drive is preferred. Installation requires a hex key or hex socket driver. This screw is partially threaded along its shank.

This fastener is used across a broad range of industrial and mechanical applications including CNC equipment, tooling fixtures, machine frames, and precision assemblies. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it common in both shop-floor machinery and controlled-environment equipment. It is typically installed by machinists, millwrights, maintenance technicians, and mechanical assemblers. The minimum order quantity for this SKU is 50 pieces.

Key Features

• Grade 12.9 alloy steel construction for high tensile and shear strength
• Black oxide finish for mild corrosion resistance and reduced reflectivity
• Partially threaded shank for precise clamping and alignment
• Hex socket drive for high torque input in tight clearance areas
• Compliant with DIN 912 and ISO 898-1 fastener standards

Compatibility

Designed as a standard DIN 912 metric hex socket cap screw suitable for M5 x 0.80 threaded holes in metal components requiring a grade 12.9 fastener.

Installation Notes

Installation is performed using a properly sized hex key or hex socket bit rated for high-torque fastening. Ensure the mating threaded hole is clean and free of debris before driving the screw. Do not exceed the torque rating appropriate for grade 12.9 M5 fasteners as specified by the equipment manufacturer or applicable engineering standards. Inspect threads for damage before installation and do not reuse fasteners that show signs of galling or deformation.