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Everything about wood screws

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The regular slotted head is best used which has a flat screwdriver, when the cross-shaped indention is very best suited to a Phillips screwdriver. A Robertson screw contains a sq.-shaped indention and demands a matching driver head. Thread forming screws are just like thread slicing screws, but in place of https://timco-screws75297.daneblogger.com/28141373/screws-for-dummies

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