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M5 x 30 black socket countersunk screw

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M6 x 20mm Countersunk Socket Screws Grade 10.9 Black - Pack of 4

£3.95

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M6 x 20mm Countersunk Socket Screws – Grade 10.9 High Tensile – Black – Pack of 4

M6 x 20mm countersunk (CSK) socket head cap screws in high tensile Grade 10.9 with a black finish. Driven by Allen hex key. Provides a flush, low-profile fastening ideal for applications requiring high strength and a clean aesthetic.

  • Size: M6 x 20mm
  • Pack Quantity: 4 screws
  • Head Type: Countersunk (CSK)
  • Drive: Hex socket (Allen key)
  • Grade: 10.9 High Tensile
  • Finish: Black (black oxide)
  • Standard: DIN 7991 / ISO 10642
  • Country of Origin: GB

Suitable for engineering, automotive, machine assembly, and structural applications where a flush finish and high clamping force are required. Moderate corrosion resistance from black oxide finish. Not suitable for marine environments.

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