This Key measures 5/16 x 5/16 x 3 inches and is constructed from uncoated zinc material, designed in Form B for secure fastening in machinery. Its precise dimensions allow for easy installation in keyways, ensuring a reliable connection between rotating components. The zinc construction provides moderate corrosion resistance, 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.