Ruwag Square Drive Chipboard Screws are used for joining wood and are available in square drive. Combine them with wall plugs for the fastening of light shelves and cupboards.
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What is the size of the square on the screwhead ?
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Below is a sizing chart for all Square Drive Chipboard Screws:
3.0mm - #0 Square Drive
3.5mm - #1 Square Drive
4.0mm - #2 Square Drive
4.5mm - #2 Square Drive
5.0mm - #2 Square Drive
5.5mm - #3 Square Drive