Metric Blue UST176221 Socket Cap Screw M5 X 0.8 16mm

Product Description

The METRIC BLUE UST176221 is a socket cap screw designed for precision fastening applications requiring high tensile strength and a compact drive profile. Manufactured from alloy steel to a Grade 12.9 specification, this screw delivers exceptional clamping force in a small form factor. The M5 x 0.8 thread pitch and 16 mm length under head make it well suited for tight-tolerance assemblies. A Metric Blue finish provides surface protection while serving as a visual identifier for metric fastener sizing. The hex socket drive accepts a standard hex key or Allen-type driver, keeping the installation footprint minimal.

This screw is used across a wide range of industrial, mechanical, and machinery applications where high-strength metric fasteners are required. Common installation scenarios include machine frames, tooling fixtures, hydraulic components, and precision equipment assemblies. It is fully threaded along the shank, making it compatible with through-hole and tapped-hole configurations at the M5 x 0.8 thread standard. Machinists, millwrights, and maintenance technicians working with metric equipment will find this fastener appropriate for both OEM assembly and field repair work.

Key Features

• Grade 12.9 alloy steel construction for high tensile and proof load strength
• Fully threaded shank for maximum thread engagement in tapped holes
• M5 x 0.8 thread size conforms to DIN 912 and ISO 4762 standards
• Hex socket drive allows torque application in confined or recessed installations
• Metric Blue finish for corrosion resistance and metric size identification
• 16 mm length under head suits a variety of standard stack-up thicknesses

Compatibility

Designed as an OEM-style replacement or standard metric fastener for any application requiring an M5 x 0.8 socket cap screw conforming to DIN 912 or ISO 4762.

Installation Notes

Installation is typically performed by machinists, maintenance technicians, or millwrights using a calibrated hex key or torque wrench with the appropriate hex bit. Ensure the mating threaded hole is clean, properly tapped to M5 x 0.8, and free of debris before installation. Power down and de-energize any equipment before replacing fasteners on live machinery. Do not substitute a lower-grade fastener in applications specified for Grade 12.9 hardware.