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The METRIC BLUE UST184255 is a metric hex head cap screw designed for high-strength bolted connections in industrial, mechanical, and structural applications. Built to Grade 10.9 steel, this fastener delivers the elevated tensile strength and proof load required in demanding assemblies where standard hardware is insufficient. The M16 x 2.00 thread profile runs partially threaded along a 150 mm length under head, with a 36 mm hex drive to accept standard hex wrenches and sockets. It conforms to DIN 931, the widely recognized international standard for partially threaded metric hex bolts. Maintenance technicians, millwrights, and mechanical contractors rely on this grade for precision load-bearing joints.
This cap screw is suited for industrial machinery assembly, heavy equipment repair, structural steel fabrication, and general mechanical installations requiring metric fasteners. The partially threaded shank is intentional - it allows the unthreaded portion to bear shear loads cleanly through the joint interface, a common requirement in flange connections, pivot points, and close-tolerance bores. It is appropriate for both new construction and field-repair scenarios where DIN 931 compliance is specified.
Designed as a DIN 931 partially threaded metric hex cap screw for use in applications specifying an M16 x 2.00 thread and 150 mm grip length in Grade 10.9 or equivalent high-strength steel.
Installation should be performed by qualified mechanics or millwrights familiar with metric fastener torque specifications for Grade 10.9 hardware. Always consult the equipment manufacturer or applicable engineering specification for the required torque value - do not substitute a generic torque without verification. Ensure mating threads are clean and free of debris before installation. Do not use impact tools at final torque without a verified torque-limiting method.
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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