This Machine Key is sized at 5/16 x 5/16 x 1-3/4 inches and made from carbon steel with a zinc coating for enhanced corrosion resistance. Designed in Form B, this key is ideal for securing rotating components in machinery, ensuring a reliable connection. Its precise dimensions allow for easy installation in keyways, making it suitable for various applications in automotive and industrial settings. The carbon steel construction provides strength and durability, ensuring the key withstands operational stresses and extends the lifespan of the machinery.