Value Collection FHS1X0430-050BX M4x0.7 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION FHS1X0430-050BX 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 2.50 mm hex socket drive and an M4x0.7 thread size. The overall length is 30 mm, and the screw is partially threaded. Manufactured from 18-8 austenitic stainless steel, Grade A2, it offers solid corrosion resistance for both indoor and outdoor service environments. Licensed tradespeople and maintenance technicians use this fastener when a standard button or pan head would protrude beyond the mating surface.

This flat socket cap screw suits metric fastening applications in HVAC equipment panels, pump housings, electrical enclosures, and general mechanical assemblies where a countersunk profile is specified. The M4x0.7 thread pitch is a standard metric coarse designation, common in light-to-medium duty assemblies. The partial threading allows the unthreaded shank to bear shear loads in appropriate joint designs. Grade A2 stainless steel construction makes this screw suitable for mildly corrosive or wet service conditions encountered in plumbing and HVAC installations.

Key Features

• DIN 7991 standard 90-degree flat head for flush countersunk installation
• 2.50 mm hex socket drive for precise torque application with standard hex keys
• M4x0.7 metric coarse thread for compatibility with standard metric tapped holes
• 30 mm overall length, partially threaded shank
• 18-8 austenitic stainless steel, Grade A2 construction for corrosion resistance
• Minimum order quantity of 50 pieces ensures job-site supply depth

Compatibility

Designed as an OEM-style or replacement metric fastener for any application requiring a DIN 7991 M4x0.7 flat socket cap screw in 18-8 stainless steel.

Installation Notes

Installation requires a 2.50 mm hex key or hex socket bit rated for the drive size. Countersink the mating material to the appropriate 90-degree angle before driving the screw to avoid surface damage or improper seating. Do not overtighten stainless steel fasteners, as galling can occur without proper lubrication such as an anti-seize compound. Follow applicable mechanical codes and equipment manufacturer torque guidelines for the joint being assembled.