Self drilling screws for Timber are known as Type 17. The screw comes in a variety of head types as well as Coatings (ie Finishes). It is design with its unique point to Self drill through timber/light guage Metal. (Hardwoods recommend pilot drill).
Approx Diameter Equivalents
4g - 2.8mm
5g - 3.2mm
6g - 3.5mm
8g - 4.2mm
10g - 4.8mm
12g - 5.5mm
14g - 6.1mm
IMPORTANT: Bugle/Countersunk - Measurement is entire length of Screw.
However if your size is not listed, please feel free to Email your Enquiry

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