5/16" x 5/16" x 1' Carbon Steel Key Stock – Plain Finish

Manufactured from carbon steel, this 5/16" x 5/16" x 1‑foot key stock is designed for use in keyways to secure shafts to gears, pulleys, and couplings while transmitting torque. Featuring precise inch dimensions and a plain finish, it is ideal for general mechanical, maintenance, and industrial applications requiring dependable strength, accurate fit, and consistent performance.