M6 A2 Stainless Hex Flange Screws DIN 6921

Product Description

M6 A2 Stainless-Steel Hexagon Flange Set Screws – DIN 6921

These M6 hexagon flange set screws are manufactured from A2 stainless steel with a standard 1mm metric coarse thread pitch. Listed as fully threaded and available in lengths from 10mm to 60mm, they provide a corrosion-resistant fastening solution for machinery, automotive, fabrication and general engineering applications.

The hexagon head incorporates an integral plain flange that distributes the clamping load over a wider bearing area than a conventional hexagon head. This can reduce the need for a separate flat washer where the mating surface and application are suitable.

Product Details

• Thread size: M6
• Thread pitch: 1mm metric coarse
• Available lengths: 10mm to 60mm
• Thread coverage: Fully threaded set screw, as listed
• Material: A2 stainless steel
• Finish: Natural stainless-steel finish
• Head style: Hexagon head with integral flange
• Flange underside: Plain/non-serrated
• Spanner size: 10mm
• Flange diameter: Approximately 13.5mm
• Head height: Approximately 6.6mm
• Product standard: DIN 6921
• Current successor: BS EN 1665:1997

The stated length is measured from beneath the integral flange to the end of the screw.

Available Pack Sizes

Available in packs of 5, 10, 20, 50, 100, 250, 500 and 1000. Available combinations may depend on the selected screw length.

Features and Benefits

• A2 stainless steel provides good general corrosion resistance
• Integral flange distributes the clamping load over a wider area
• Can reduce the need for a separate flat washer
• Plain flange underside allows adjustment before final tightening
• Fully threaded design provides maximum thread engagement where required
• Standard M6 x 1mm metric coarse thread
• 10mm external hexagon for installation with standard tools
• Nine metric lengths available from 10mm to 60mm

Typical Applications

• Automotive and motorcycle assembly
• Machinery and equipment
• Brackets, guards and mounting plates
• Sheet-metal and fabricated components
• Electrical and mechanical enclosures
• General engineering and maintenance

Installation Guidance

• Use with a compatible M6 x 1mm nut or internally threaded component.
• Install using a correctly fitting 10mm socket or spanner.
• Ensure the flange bears against a clean, reasonably flat surface.
• Use a separate washer where required by the joint design or surface material.
• Use an appropriate locking method in applications exposed to vibration.
• Avoid excessive tightening or repeated tightening and loosening.
• Consider a suitable anti-galling lubricant when assembling stainless-steel threads.
• Determine tightening torque from the joint design, lubrication and required preload.

Important: The plain flange is not a prevailing-torque or locking feature. Where resistance to loosening is required, use a compatible locking nut, thread-locking compound or other approved locking method.

Corrosion guidance: A2 stainless steel provides good resistance in many indoor and mildly exposed outdoor environments. For marine, coastal, swimming-pool, chemical or other chloride-rich conditions, A4 stainless steel may be more appropriate.

Browse our hexagon flange bolts and set screws or view the complete bolts and set-screws range .

Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.