Value Collection FHS1X0540-025BX M5x0.8 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION FHS1X0540-025BX is a metric flat socket cap screw designed for flush or countersunk fastening applications where a low-profile head is required. Built to DIN 7991 standards, this screw features a 90-degree flat head with a 3.00 mm hex socket drive and is manufactured from 18-8 austenitic stainless steel (Grade A2), providing solid corrosion resistance in moist or mildly corrosive environments. The M5x0.8 thread size with 40 mm overall length and partial threading makes it well suited for through-hole and tapped-hole assemblies where clamp load and thread engagement are both priorities. Sold in a minimum order quantity of 25 pieces.

This screw is used across a wide range of mechanical, HVAC panel, electrical enclosure, and equipment assembly applications where a countersunk fastener is specified. The Grade A2 stainless construction makes it appropriate for interior and exterior installations subject to humidity, light chemical exposure, or washdown conditions. Typical installers include mechanical contractors, equipment fabricators, and field service technicians working with metric-threaded components.

Key Features

• 90-degree flat head profile for flush or countersunk seating
• 3.00 mm hex socket drive for precise torque application with standard Allen keys or hex bit drivers
• 18-8 austenitic stainless steel (Grade A2) for corrosion resistance
• Partial threading for controlled engagement in through-hole and tapped assemblies
• Manufactured to DIN 7991 fastener standard
• Minimum order quantity of 25 per order

Compatibility

Designed for use in metric-threaded assemblies requiring an M5x0.8 countersunk socket cap screw per DIN 7991. Suitable for applications specifying 18-8 or Grade A2 stainless steel fasteners.

Installation Notes

Install using a 3.00 mm hex key or hex bit driver sized to the socket to avoid rounding the drive recess. Confirm the mating hole is properly countersunk to 90 degrees to achieve full head seating. Avoid mixing stainless steel fasteners with dissimilar metals in applications prone to galvanic corrosion. Torque to values specified by the applicable equipment or assembly standard for M5 stainless fasteners.