Value Collection FHS1X2080 Flat Socket Cap Screw M20x2.5

Product Description

The VALUE COLLECTION FHS1X2080 is an M20x2.5 flat socket cap screw manufactured from 18-8 austenitic Grade A2 stainless steel. It features a 90-degree flat head with a 12 mm hex socket drive and an overall length of 80 mm with partial threading along the shank. Conforming to DIN 7991, this fastener is suited for flush or countersunk installations where a low-profile head is required. The Grade A2 stainless construction provides corrosion resistance in wet, marine, and chemical-exposure environments. Mechanical and structural tradespeople specify this screw for applications where head protrusion must be minimized and stainless material is mandated by spec or environment.

This flat socket cap screw is used in metric-spec assemblies across industrial, mechanical, and structural applications. The partial threading makes it appropriate for clamping two components with a defined grip length, allowing the unthreaded shank to act as a shoulder through the clearance hole. Typical installations include machine frames, enclosures, brackets, and fabricated assemblies where DIN 7991 compliance is required. The M20 thread diameter is a heavy-duty fastener size, commonly installed in high-load connections in manufacturing and construction environments.

Key Features

• 90-degree flat head for flush countersunk installation per DIN 7991
• 12 mm hex socket drive for high-torque engagement with a standard hex key or driver bit
• M20x2.5 metric thread in a partially threaded configuration for defined grip-length clamping
• 18-8 austenitic Grade A2 stainless steel for corrosion resistance in wet and chemically active environments
• 80 mm overall length suits medium-to-heavy fastening depth requirements

Compatibility

Designed as an OEM-style or replacement metric fastener for assemblies specifying DIN 7991 flat socket cap screws in M20x2.5 thread with an 80 mm overall length and Grade A2 stainless steel material.

Installation Notes

Installation is typically performed by machinists, millwrights, or mechanical tradespeople using a calibrated hex key or socket driver sized to 12 mm. A properly sized countersunk clearance hole must be prepared in the through-member before installation to seat the flat head flush. Apply thread-appropriate anti-seize or thread locker to stainless fasteners as required by the assembly specification to prevent galling. Ensure the mating tapped hole meets M20x2.5 metric thread standards before driving the fastener to avoid cross-threading.