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About Tapping Screws
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Rounded Head Screws for Joining Plastic to Wood
Cutting wings under the head allow plastic to expand and contract without cracking. A washer made from aluminum and rubber bonded to steel adds a watertight seal. They’re zinc-plated steel to resist corrosion in wet environments. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.