The addition of a washer to a self-drilling screw serves multiple purposes. First and foremost, it distributes the load from the screw head evenly over a larger surface area, preventing damage to the material being fastened. This is particularly crucial when dealing with softer materials or surfaces that can be easily indented. The washer also increases the screw's holding power, enhancing the overall stability of the joint.
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2025-08-14 03:17
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