The Machine Key 3/16 x 3/16 x 1-3/8 is manufactured from 1045 steel, providing strength and durability for mechanical applications. This undersized key is designed to fit into keyways, ensuring proper alignment and torque transmission between shafts and hubs. With dimensions of 3/16 inches square and a length of 1-3/8 inches, it is suitable for various machinery and equipment. The 1045 steel construction meets industry standards, ensuring reliability and performance in demanding environments. This machine key is essential for maintaining the integrity of rotating assemblies.