Woodruff & Straight Keys

A Woodruff key is a semicircle-shaped machine key that prevents gears, hubs or other components from moving independently of a rotating shaft or spindle. They are used to improve concentricity of the shaft and the mating part, helping to bear the load during high-speed operations. They also act as a fail‑safe that protects expensive parts by shearing under excessive loads.

For all your Woodruff and straight key needs, shop our vast selection of automotive clips and fasteners. You won’t find a better selection anywhere. We’ve got steel straight and Woodruff keys in a variety of sizes to fit any need. We even have a 383-piece Woodruff key set with over a dozen different sized keys. Check out our massive inventory of over 1,000 clips, fasteners, screws and more. We offer durable quality products at affordable prices and free shipping on orders over $99.