Value Collection FHS1XX0530-050BX M5x0.8 Flat Socket Cap Screw

Product Description

The VALUE COLLECTION FHS1XX0530-050BX is a metric flat socket cap screw manufactured from 316 austenitic stainless steel to Grade A4 specification. It features a 90-degree flat head with a 3.00 mm hex socket drive, an M5x0.8 thread, and an overall length of 30.00 mm with partial threading. The fastener conforms to DIN 7991 standards. This screw is used by machinists, maintenance technicians, and fabricators who require a flush-mount fastener in corrosion-resistant stainless steel. The low-profile countersunk head sits flush or below the mating surface, making it suited for assemblies where protrusion is not acceptable.

This flat socket cap screw is appropriate for light to medium-duty metric fastening applications requiring corrosion resistance, particularly in marine, food-processing, chemical, or outdoor environments where 316 stainless steel is specified. The partial threading is typical for applications where the unthreaded shank provides a bearing surface or allows for controlled clamp load in thicker material stacks. This fastener ships in a minimum order quantity of 50 pieces, with each package containing 1 unit counted against that minimum.

Key Features

• 90-degree flat countersunk head for flush or sub-flush installation
• 3.00 mm hex socket drive for use with standard metric Allen keys or hex bits
• M5x0.8 thread pitch conforming to metric thread standard
• Partially threaded shank per DIN 7991 fastener standard
• 316 austenitic stainless steel, Grade A4, for superior corrosion resistance
• Overall length of 30.00 mm

Compatibility

Designed as an OEM-style or replacement metric flat socket cap screw for assemblies specifying DIN 7991 M5x0.8 countersunk hex socket fasteners in 316 or Grade A4 stainless steel.

Installation Notes

Installation is performed by machinists, maintenance technicians, or fabricators using a 3.00 mm hex key or hex socket bit. The mating workpiece must be drilled and countersunk to the 90-degree angle specified for DIN 7991 fasteners before installation. Do not use an impact driver at full torque on stainless steel fasteners, as galling is a known risk; apply an appropriate anti-seize compound and drive at controlled speed. Ensure fastener grade and material are compatible with the mating material to prevent galvanic corrosion.