6.3mm x 50mm hex head self-drilling screw in A2 stainless steel to DIN 7504-K. The drill-point tip bores and taps into light-gauge steel in a single operation - no pre-drilling or tapping required for thin sheet and steel cladding. A2 (304 grade) gives good corrosion resistance for indoor and non-coastal outdoor use. Free next-day UK delivery on orders over £50.
  • 6.3mm x 50mm hex self-drilling screw A2 stainless DIN 7504
  • DIN 7504 self-drilling screw 6.3mm x 50mm A2 stainless steel, side profile
  • Simfix product label - 7504KA263050PK50-SIM
  • Simfix product label - 7504KA263050PK250-SIM
6.3mm x 50mm hex self-drilling screw A2 stainless DIN 7504
DIN 7504 self-drilling screw 6.3mm x 50mm A2 stainless steel, side profile
Simfix product label - 7504KA263050PK50-SIM
Simfix product label - 7504KA263050PK250-SIM

Simfix

Hex Head Self Driller DIN 7504-K A2 Stainless Steel (6.3 X 50)

SKU 7504KA263050PK50-SIM
£9.20
Pack size:
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6.3mm x 50mm hex head self-drilling screw in A2 stainless steel to DIN 7504-K. The drill-point tip bores and taps into light-gauge steel in a single operation - no pre-drilling or tapping required for thin sheet and steel cladding. A2 (304 grade) gives good corrosion resistance for indoor and non-coastal outdoor use. Free next-day UK delivery on orders over £50.
£9.20
6.3mm x 50mm hex self-drilling screw A2 stainless DIN 7504 DIN 7504 self-drilling screw 6.3mm x 50mm A2 stainless steel, side profile Simfix product label - 7504KA263050PK50-SIM Simfix product label - 7504KA263050PK250-SIM
6.3mm x 50mm hex self-drilling screw A2 stainless DIN 7504 DIN 7504 self-drilling screw 6.3mm x 50mm A2 stainless steel, side profile Simfix product label - 7504KA263050PK50-SIM Simfix product label - 7504KA263050PK250-SIM

This 6.3mm x 50mm hex head self-drilling screw is manufactured to DIN 7504-K in A2 stainless steel (304 grade). DIN 7504-K specifies a self-drilling, self-tapping screw: the drill-point tip bores through light-gauge steel sheet and simultaneously taps a thread in a single driving operation, eliminating the separate pre-drilling and pre-tapping steps required with standard screws. This significantly reduces installation time in steel cladding, roofline purlins, and light structural steelwork. The hex washer head sits above the surface with a built-in seating face, suited to standard sockets, magnetic nut-runners, and impact drivers for high-speed power-tool installation. The drill point is rated for specific material thicknesses - use the correct screw length for the combined substrate thickness.

Typical applications

  • Light-gauge steel cladding, purlins, and roofline fixings
  • Metal-framed partitioning, mezzanine floors, and steelwork connections
  • Sheet metal enclosures and fabrication where pre-drilling is not practical
  • Indoor and sheltered outdoor structural metalwork

Available in packs of 50 to 250, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns.

Fastener styleHex head self-drilling screw
StandardDIN 7504-K
MaterialA2 stainless steel (304)
Property classA2
Thread sizeM6.3
Length50 mm
Head typeHex
Drive typeExternal hex (spanner)
Surface finishPlain (no plating)
HS commodity code7318141090
Recommended useIndoor

RoHS and REACH compliant.

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