Value Collection FHS1X20100PT Flat Socket Cap Screw M20x2.5

Product Description

The VALUE COLLECTION FHS1X20100PT is a metric flat socket cap screw designed for flush or countersunk fastening applications in structural and mechanical assemblies. It features a 90-degree flat head with a 12 mm hex socket drive, an M20x2.5 thread size, and an overall length of 100 mm. The fastener is partially threaded and manufactured from 18-8 austenitic stainless steel to Grade A2 per DIN 7991, providing corrosion resistance suitable for wet, outdoor, or chemically exposed environments. Machinists, millwrights, and maintenance technicians commonly install this type of fastener where a low-profile, flush-mounted head is required.

This flat socket cap screw suits metric fastening applications across industrial equipment, structural frames, machinery, and fabricated assemblies. The partial threading allows for precise clamping in through-bolt configurations where an unthreaded shank is needed in the grip zone. The DIN 7991 standard makes this screw compatible with metric countersunk hole patterns commonly found in European-specification and metric-dimensioned equipment. It is appropriate for both light and heavy fabrication work requiring stainless fasteners.

Key Features

• 90-degree flat head profile seats flush in countersunk holes, eliminating protrusion above the mating surface
• 12 mm hex socket drive allows high torque application with standard Allen or hex key tooling
• M20x2.5 metric thread conforms to DIN 7991 fastener standard for dimensional accuracy
• 18-8 austenitic stainless steel Grade A2 construction provides corrosion resistance without plating
• Partially threaded shank provides an unthreaded grip zone for precision clamping applications
• Overall length of 100 mm suits deeper through-hole and thick-plate fastening scenarios

Compatibility

Designed for use in metric countersunk fastening applications conforming to DIN 7991 specifications. Suitable for assemblies requiring M20x2.5 thread engagement with a 90-degree countersunk seat.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a calibrated 12 mm hex key or socket driver. Ensure the countersunk hole is machined to the correct 90-degree included angle and is sized for M20 before installing. De-energize and lock out any equipment before fastener service work. Avoid cross-threading by starting the screw by hand before applying torque.