12g Series 500 Fine Self Drilling Screws Galvanized
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12g Series 500 Fine Self Drilling Screws Galvanized


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Self Drilling screws – are designed to have a drill-shaped point for use with metal, without having to drill a pilot hole beforehand.

  •     Carbon Steel (C1022)
  •     Rupert plated – complies with AS3566 Class 4
  •     Flange Hex. Head – 5/16 Hex Socket
  •     12G screws – 5.5mm
  •     24TPI – Fine
  •     #5 drill point (Extended) –  Drill Capacity Steel  up to12mm  – (S500 screws)


  • For heavy duty purpose
  • Metal deck to structural steel or bar joist
  • Clip to structural or bar joist
  • Longer length fasteners forsheet applications

Fine thread are designed for drive into thicker Metal. Fine threading has a higher tensile strength than coarse threading

Class 4 Screws

  • Suitable for external use in heavy industrial or severe marineenvironments.
  • Heavy industrial environments refer to atmosphere with medium pollution from industry.
  • Severe marine environments refer to coastal areas with high airborne salinity.

Additional information


12-24x32mm C4, 12-24x50mm C4, 12-24x65mm C4, 12-24x85mm C4



Tower Fastening


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