Simfix

M6 X 20 Hex Socket Countersunk Screw 10 Pack ISO 10642 A2 Stainless Steel

SKU 10642A206020PK10-SIM
1000+ in stockReady to dispatch
£3.24
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M6 x 20mm countersunk socket screw in A2 stainless steel to ISO 10642. Hex key driven with a flush countersunk head - suited to machinery panels, access covers, and cabinetwork where a clean surface finish is required. A2 (304 grade) gives good corrosion resistance for indoor and non-coastal outdoor use. Free next-day UK delivery on orders over £50.
£3.24

M6 x 20mm countersunk socket screw in A2 stainless steel to ISO 10642. Hex key driven with a flush countersunk head - suited to machinery panels, access covers, and cabinetwork where a clean surface finish is required. A2 (304 grade) gives good corrosion resistance for indoor and non-coastal outdoor use. Free next-day UK delivery on orders over £50.
  • M6 x 20mm countersunk socket screw A2 stainless ISO 10642
  • ISO 10642 countersunk socket screw M6 x 20mm A2 stainless steel, side profile
  • Allen key countersunk detail - M6 x 20mm A2 stainless CSK socket screw ISO 10642
  • Hex Socket Countersunk in a real-life workshop application. A low-profile socket fixing for clean machine assemblies.
  • Simfix product label - 10642A206020PK10-SIM
  • Simfix product label - 10642A206020PK50-SIM
M6 x 20mm countersunk socket screw A2 stainless ISO 10642
ISO 10642 countersunk socket screw M6 x 20mm A2 stainless steel, side profile
Allen key countersunk detail - M6 x 20mm A2 stainless CSK socket screw ISO 10642
Hex Socket Countersunk in a real-life workshop application. A low-profile socket fixing for clean machine assemblies.
Simfix product label - 10642A206020PK10-SIM
Simfix product label - 10642A206020PK50-SIM
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M6 x 20mm countersunk socket screw A2 stainless ISO 10642 ISO 10642 countersunk socket screw M6 x 20mm A2 stainless steel, side profile Allen key countersunk detail - M6 x 20mm A2 stainless CSK socket screw ISO 10642 Hex Socket Countersunk in a real-life workshop application. A low-profile socket fixing for clean machine assemblies. Simfix product label - 10642A206020PK10-SIM Simfix product label - 10642A206020PK50-SIM
M6 x 20mm countersunk socket screw A2 stainless ISO 10642 ISO 10642 countersunk socket screw M6 x 20mm A2 stainless steel, side profile Allen key countersunk detail - M6 x 20mm A2 stainless CSK socket screw ISO 10642 Hex Socket Countersunk in a real-life workshop application. A low-profile socket fixing for clean machine assemblies. Simfix product label - 10642A206020PK10-SIM Simfix product label - 10642A206020PK50-SIM

This M6 x 20mm countersunk socket screw is manufactured to ISO 10642 in A2 stainless steel (304 grade). ISO 10642 specifies a flat countersunk head with a 90-degree included angle and internal hex socket drive. Driven with a hex key, the head sits flush with or below the parent material surface - combining the clean, flush finish of a countersunk head with the high torque capability and access flexibility of socket drive. A practical choice for machinery panels, access covers, and fabrication where a flush surface is required but a Pozi or Phillips driver is not preferred.

Typical applications

  • Machinery panels, access covers, and equipment housings where flush mounting is needed
  • Furniture, cabinetry, and architectural metalwork with a clean finish
  • Electronics enclosures and instrument panels
  • Workshop and engineering assemblies where a recessed hex driver is preferred

Available in packs of 10 to 50, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns.

*Photos, diagrams and other images are for illustration only and may not show the exact item supplied. Simfix reserves the right to alter or replace any photo, diagram or image at any time at its sole discretion.

**Orders that cannot be split will be rounded up to the next full pack or box quantity.

Simfix reserves the right to change quantities, stock levels and prices at any time. We accept no liability for the accuracy of dimensional data, DIN/ISO references, technical data, customs tariff codes or EAN barcodes.

Fastener styleCountersunk screw with hex socket drive
StandardISO 10642
MaterialA2 stainless steel (304)
Property classA2
Thread sizeM6
Thread pitch1.0 mm (coarse)
Length20 mm
Head typeCountersunk socket
Drive typeHex socket (Allen)
Surface finishPlain (no plating)
HS commodity code7318156290
Recommended useWorkshop

RoHS and REACH compliant.

How do I choose between A2 and A4 stainless steel?

A2 (304) stainless steel suits most indoor, outdoor and workshop jobs. Choose A4 (316) marine grade for coastal, marine, poolside or other chloride-rich environments.

How do I make sure I order the right size?

Check the size in the product title and the standard, material and dimensions in the Product Specification tab. In M8 x 30, M8 is the thread diameter and 30 is the length in millimetres. See our size guide if you need more help.

When will my order arrive?

Orders placed before 4pm Monday-Friday are typically dispatched the same working day and every order is tracked. Next-day delivery is free over £50, or £5.50 below that threshold. Full options are shown at checkout.

What if I order the wrong item?

Email contact@simfix.com within 30 days of delivery with your order number. We will help arrange a refund or replacement. See our refunds information for the full process.

Is checkout secure?

Yes. Checkout is protected by SSL encryption and payments are processed through Shopify's secure checkout and supported payment providers. Simfix does not store your full card details.

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