Value Collection FHS1XX0660-025BX M6x1 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION FHS1XX0660-025BX is an M6x1 flat socket cap screw manufactured from 316 austenitic stainless steel meeting Grade A4 classification. The screw features a 90-degree flat head with a 4 mm hex socket drive and measures 60 mm in overall length. It is partially threaded per DIN 7991 standard. This fastener is suited for applications requiring a flush or countersunk installation profile combined with corrosion resistance in wet, chemical, or marine environments. Typically installed by millwrights, pipefitters, maintenance mechanics, and industrial technicians.

This flat socket cap screw is used in mechanical assemblies, structural connections, and equipment fabrication where the fastener head must sit flush with or below the mating surface. The metric M6x1 thread and DIN 7991 conformance make it a direct fit in applications designed to metric standards. The Grade A4 stainless steel construction provides strong resistance to corrosion in saltwater, chlorinated, and acidic environments, making it a common choice in marine hardware, food processing equipment, chemical processing assemblies, and outdoor structural applications.

Key Features

• 90-degree flat head profile seats flush in countersunk holes per DIN 7991
• 4 mm hex socket drive for precise torque application with standard Allen keys
• 316 austenitic stainless steel construction resists corrosion in harsh and marine environments
• Grade A4 material classification for high corrosion resistance and moderate mechanical strength
• Partially threaded shank for controlled engagement in through-bolt and clearance-hole applications
• Metric M6x1 thread standard for compatibility with metrically designed assemblies

Compatibility

Designed as an OEM-style replacement or service fastener for metric M6x1 countersunk hex socket screw applications conforming to DIN 7991.

Installation Notes

Installation should be performed by a qualified mechanic or technician familiar with metric fastener torque requirements for Grade A4 stainless steel. De-energize all equipment and relieve any pressure or load on the assembly before removing or installing fasteners. Use a calibrated 4 mm hex key or driver to avoid rounding the socket. Apply an anti-seize compound appropriate for stainless steel to prevent galling during installation and future removal.