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The METRIC BLUE UST176211 is a socket cap screw designed for high-strength fastening applications in mechanical assemblies, fixtures, and precision equipment. It features an M3x0.5 thread profile and a 12 mm length under head, with full threading along the shank. The hex socket drive allows torque application with a standard Allen key or hex bit driver. Manufactured from alloy steel to DIN 912 standards at material grade 12.9, this fastener delivers high tensile and proof load performance suited to demanding industrial and trade applications.
This screw is commonly used in machine assembly, tooling fixtures, hydraulic components, and equipment maintenance tasks where a recessed-head, high-strength fastener is required. The compact M3 profile makes it well suited for tight-clearance installations where a standard hex head would not fit. It is appropriate for use by millwrights, machinists, maintenance technicians, and field service professionals working on precision mechanical systems.
Designed as an OEM-style replacement or standard-stock socket cap screw conforming to DIN 912 for use in any M3x0.5 threaded application requiring a grade 12.9 alloy steel fastener.
Installation is performed by machinists, maintenance technicians, or qualified trade professionals using a hex key or hex socket driver sized to the M3 socket cap specification. Confirm thread engagement depth and mating material hardness before final torque application. Do not mix metric and imperial fasteners in the same assembly. Inspect the socket recess for debris before driving to avoid stripping.
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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