Value Collection A410401 M6x1 Flat Socket Cap Screw 25pk

Product Description

The VALUE COLLECTION A410401 is a metric flat socket cap screw engineered for flush or countersunk fastening applications requiring corrosion-resistant hardware. Built to DIN 7991 standards, this M6x1 screw is machined from 316 austenitic Grade A4 stainless steel, making it well-suited for environments exposed to moisture, chemicals, or salt air. The 90-degree flat head seats flush with the mating surface when installed in a properly countersunk hole. Drive engagement is through a 4.00 mm hex socket, and the screw is partially threaded with an overall length of 20.00 mm. Each order includes 25 pieces. This fastener is installed by mechanical contractors, millwrights, HVAC technicians, plumbers, and general tradespeople wherever a low-profile, corrosion-resistant screw is required.

This screw is appropriate for metric fastening tasks in both residential and light commercial settings. The 316 stainless steel alloy provides elevated resistance to chloride-induced corrosion compared to standard 304 stainless, making it a common choice for marine-adjacent installations, pool equipment enclosures, outdoor electrical panels, and plumbing fixture assemblies. The partial thread design concentrates clamping force and suits through-bolted joints where thread engagement is limited to the bottom portion of the grip length.

Key Features

• DIN 7991 standard construction ensures dimensional consistency and interchangeability
• 316 austenitic Grade A4 stainless steel for superior chloride and corrosion resistance
• 90-degree flat head profile for flush countersunk installation
• 4.00 mm hex socket drive for precise torque application with standard allen keys or hex bits
• Partial threading for improved clamping in through-bolted assemblies
• Sold in a 25-piece pack with a minimum order quantity of 1

Compatibility

Designed as a metric M6x1 flat socket cap screw conforming to DIN 7991, suitable for use in any application requiring a countersunk hex socket fastener at this thread size and pitch.

Installation Notes

Installation requires a properly sized countersunk hole to allow the 90-degree flat head to seat flush with the workpiece surface. Use a calibrated hex key or hex bit driver sized to 4.00 mm to avoid stripping the socket. Verify that the mating material is compatible with 316 stainless steel to prevent galvanic corrosion in mixed-metal assemblies. Always de-energize and depressurize any equipment before accessing fastened enclosures or components.