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The METRIC BLUE UST184120 is a metric flat socket cap screw designed for applications where a low-profile, countersunk head is required. Built to DIN 7991 standard, it features an M10x1.5 thread and a 50 mm overall length with full threading along the shank. The 6 mm hex socket drive allows installation with a standard hex key or hex bit driver. Manufactured from 12.9 grade alloy steel, this fastener delivers high tensile strength suitable for demanding mechanical assemblies. The Metric Blue finish provides a uniform appearance and light corrosion resistance. Licensed machinists, millwrights, and mechanical contractors typically specify this grade for precision structural and machine-frame fastening tasks.
This flat socket cap screw is used in machine tool construction, die and mold assemblies, automotive fabrication, and industrial equipment where a flush or recessed head profile is required. The 90-degree flat head seats cleanly into countersunk holes, keeping mating surfaces unobstructed. The fully threaded 50 mm length accommodates a range of material stack thicknesses. Its metric sizing and DIN 7991 compliance make it a standard choice for imported machinery maintenance and OEM assembly lines running metric hardware specifications.
Designed as an OEM-style replacement or standard-stock fastener for metric mechanical assemblies requiring a DIN 7991 flat socket cap screw in M10x1.5 thread.
Installation is typically performed by machinists, millwrights, or mechanical technicians using a calibrated hex key or torque wrench with a hex bit. Confirm the mating hole is countersunk to a 90-degree angle before seating the head. Always degrease threads and consult the assembly torque specification for 12.9 grade fasteners before final tightening. Do not substitute lower-grade hardware in applications specifying 12.9 material grade.
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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