The Machine Key 7/16 x 1/2 x 1-3/8 Form B is crafted from carbon steel, providing excellent strength and durability for various mechanical applications. This undersized key is specifically designed to fit into keyways, ensuring secure connections between rotating components. With dimensions of 7/16 inch by 1/2 inch and a length of 1-3/8 inches, it is ideal for use in machinery where precise alignment is critical. This product adheres to industry standards, making it a reliable choice for both industrial and commercial use.