Metric Blue UST181928 Flat Socket Cap Screw M6x1

Product Description

The METRIC BLUE UST181928 is a flat socket cap screw engineered to DIN 7991 standards for flush or countersunk fastening applications. Sized M6x1 with an overall length of 20.00 mm, it is fully threaded and driven by a 4.00 mm hex socket. Manufactured from 12.9 grade alloy steel, this screw delivers high tensile strength suited to precision mechanical assemblies, tooling fixtures, and machine frames. The Metric Blue finish provides a degree of corrosion resistance while identifying the screw as metric hardware at a glance. Mechanical contractors, millwrights, and maintenance technicians working with metric equipment specify this grade for demanding clamping and structural fastening tasks.

This flat socket cap screw is intended for use in applications where the fastener head must sit flush with or below the surface of the mated component. The 90-degree flat head geometry and hex socket drive make it well suited for tight-clearance installations in metal fabrication, industrial machinery, automotive components, and precision equipment assembly. It follows metric thread standards, making it compatible with M6x1 tapped holes per standard metric specifications. Sold individually with a minimum order quantity of 100 pieces per order.

Key Features

• 12.9 grade alloy steel construction for high tensile and proof load capacity
• 90-degree flat head profile allows flush or countersunk installation
• 4.00 mm hex socket drive for precise torque application in confined spaces
• Fully threaded along the entire 20.00 mm length for maximum thread engagement
• Metric Blue finish for corrosion resistance and metric identification
• Conforms to DIN 7991 fastener standard

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for any application requiring an M6x1 fully threaded flat socket cap screw per DIN 7991 in 12.9 alloy steel.

Installation Notes

Installation is typically performed by machinists, millwrights, or mechanical technicians using a calibrated hex key or socket driver sized at 4.00 mm. Ensure the mating tapped hole is clean and properly sized to M6x1 metric thread specification before installation. Do not exceed the recommended torque range for 12.9 grade M6 fasteners as specified by the equipment manufacturer or applicable industry standards. Inspect threads and seating surfaces for damage prior to final assembly.