Hillman 881705 Steel Square Keys, 3/16 in. x 1 in., 1-Pack Zodiac it won't skid up the

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Hillman 881705 Steel Square Keys, 3/16 in. x 1 in., 1-Pack Zodiac it won't skid up theProduct Details These Hillman 3 16 in. x 1 in. Steel Square Keys are small bars of any length with similar height and width. They are inserted between a shaft and a hub to prevent relative rotation. Each square key is made of high quality steel with a corrosion resistant zinc plated finish GREAT FOR MECHANICAL APPLICATIONS: Commonly used in general industrial machinery PREVENTS RELATIVE ROTATION: Designed to act as a sort of anti turn mechanism when