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)
  •     Yellow Zinc Plated
  •     Hex Washer flange Head - 5/16" Socket 
  •     12G screws - 5.5mm
  •     14TPI - Fully thread
  •     20mm Lenght
  •     #3 Drilling point - Drill Capacity: Steel 2-4mm

Pack Qty:   500pcs/pack    Bulk=8pack=4,000pcs


  • For medium duty purpose
  • Roof deck to steel framing
  • Accessories to steel framing

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

Yellow Zinc Plated not appropriate for exterior applications

SKU SDHY12-2420
Barcode # 9352988005272
Unit Of Measure 500

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