Metric Blue UST193101 Socket Cap Screw M20 X 2.5

Product Description

The METRIC BLUE UST193101 is an M20 x 2.5 socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from alloy steel to material grade 12.9, it delivers exceptional tensile strength and fatigue resistance. The hex socket drive accepts a standard hex key for installation in confined spaces where a wrench cannot reach. At 55 mm length under head, the screw is fully threaded and carries a metric blue finish for corrosion resistance identification. Machinists, millwrights, and mechanical contractors install this fastener in precision assemblies where high-clamp-load performance is required.

This screw is suited for use in heavy equipment, machinery frames, tooling fixtures, hydraulic components, and structural steel applications that demand a high-grade metric fastener. The M20 x 2.5 thread pitch and 12.9 material grade make it a direct fit for applications originally specified to DIN 912 standards. It is sold individually and is appropriate wherever a fully threaded, large-diameter socket cap screw is called for in metric engineering drawings or maintenance work orders.

Key Features

• M20 x 2.5 thread size with 55 mm length under head, fully threaded
• Material grade 12.9 alloy steel for maximum tensile and proof load ratings
• Hex socket drive for installation in tight or recessed clearances
• Metric blue finish for coating identification and moderate corrosion resistance
• Conforms to DIN 912 fastener standard
• Sold as a single unit, no minimum order premium

Compatibility

Designed as a DIN 912-compliant M20 x 2.5 socket cap screw suitable for any assembly or equipment requiring a grade 12.9 metric fastener of this thread size and length.

Installation Notes

Installation is performed by millwrights, machinists, or mechanical maintenance technicians using a properly sized hex key or socket driver. Always verify the mating thread is clean and undamaged before installation. Torque to the value specified on the engineering drawing or equipment service manual for grade 12.9 M20 fasteners - do not estimate torque without referencing a rated specification. De-energize and lockout-tagout any equipment before replacing or installing fasteners in live assemblies.