This Machine Key measures 1/4 x 1/4 x 2-3/16 inches and is made from carbon steel, designed in Form B for secure fastening in machinery. Its undersized dimensions allow for easy installation in keyways, ensuring a reliable connection between rotating components. The carbon steel construction provides strength and durability, making it suitable for various applications in automotive and industrial settings. This key is essential for maintaining optimal performance and reliability in mechanical assemblies, ensuring longevity and efficiency.