The Key 5/16 x 5/16 x 1-1/2 Form B is a precision-engineered component made from carbon steel, designed for optimal performance in mechanical applications. This key features a square cross-section, ensuring a secure fit in keyways for effective torque transmission. With dimensions of 5/16 inches by 5/16 inches and a length of 1-1/2 inches, it is ideal for use in various machinery and equipment. The carbon steel construction provides strength and durability, making it suitable for high-stress environments. This key is essential for maintaining the functionality of rotating machinery.