Value Collection 534092PR M6x1 50mm Flat Socket Cap Screw

Product Description

The VALUE COLLECTION 534092PR is a metric flat socket cap screw engineered for applications requiring a flush or countersunk fastener profile. Built to DIN 7991 standards, this screw features a 90-degree flat head driven by a 4 mm hex socket. It is manufactured from 12.9 grade alloy steel, the highest common grade for metric socket screws, delivering tensile strength suitable for high-load mechanical assemblies. The black oxide finish provides mild corrosion resistance and reduces light reflection in precision assemblies. The M6x1 thread is partially threaded along the 50 mm overall length. Machinists, tool and die technicians, industrial maintenance mechanics, and OEM assembly personnel are the typical installers.

This screw is suited for use in machine tool components, jigs and fixtures, molds, mechanical assemblies, and structural joints where a flush fastener surface is required. The 90-degree countersunk head seats cleanly into standard metric countersink profiles. The M6x1 coarse thread pitch allows for reliable engagement in tapped steel, aluminum, and cast iron bores. Partial threading provides a smooth shank section useful for shoulder-type alignment and shear-load applications. This screw is commonly used in both light manufacturing and heavy industrial settings.

Key Features

• 12.9 alloy steel grade — high tensile strength for demanding clamping and shear applications
• 90-degree flat head with 4 mm hex socket drive for flush countersunk installation
• DIN 7991 fastener standard for dimensional consistency and interchangeability
• Black oxide finish for mild corrosion resistance and low-reflectance surface
• Partial threading along 50 mm overall length for shank alignment capability
• M6x1 metric coarse thread for broad compatibility with standard tapped holes

Compatibility

Designed as an OEM-style replacement or service fastener for metric countersunk hex socket applications conforming to DIN 7991 dimensional standards with M6x1 thread size.

Installation Notes

Installation is performed by machinists or mechanical assembly technicians using a 4 mm hex key or socket bit. Ensure the receiving bore is properly countersunk to a 90-degree angle before driving the screw. Apply torque gradually and evenly to avoid thread stripping or head seating damage, particularly in aluminum substrates. De-energize or lock out any equipment before replacing fasteners in active machinery per applicable safety standards.