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Thumb Screws

1/4-20 thumb screws, Fully Threaded, Steel with Zinc finish. Wingnut head, manufactured to ASME B18.5 specifications, thumb screws are similar to wing screws except they are cold forged, not die cast and therefore much stronger. These thumb screws have a base under the head which acts as a washer but we still recommend using a washer on wood surfaces. We stock 1/4-20 wing screws in one length. We can order a large variety of different sizes and lengths in addition to the sizes in stock. Special order sizes are available in case quantities. Case quantities vary depending on size.

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Thumb screw, 1/4-20 x 2-1/2" full thread, zinc, bag of (100)
Thumb screw, 1/4-20 x 2-1/2" full thread, zinc, bag of (100)