This 1/2 x 1/2 x 3-1/2 inch Form A key is made from carbon steel, designed for optimal performance in mechanical applications. The key features a plain finish and is engineered to fit snugly in keyways, ensuring a secure connection between rotating components. With its dimensions, this key is ideal for use in various machinery and equipment, providing reliable torque transmission. The carbon steel construction offers excellent strength and durability, making it suitable for high-stress environments. This key complies with industry standards, ensuring quality and reliability.