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Not known Details About types of screw heads

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A slotted or flat drive screw head requires a flat blade or slotted screwdriver or bit to tighten or loosen. They may be made with a slotted flat line throughout the head to permit a flat blade to tighten/loosen such a https://nicoleqzeg828174.iyublog.com/28021006/top-latest-five-types-of-screw-heads-urban-news

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