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Our plain thumb screws are a one-piece screw with a cylindrically-shaped head and a fully-threaded shank along with a unified thread pitch. The head has a smooth, flat top and a knurled surface around it's circumference.

RC Fasteners & Components is your #1 wholesale source for plain knurled thumb screws in stainless and aluminum. If you need other materials or platings, please contact us and we'll be happy to assist you.