The SC-9/16-14 is a plastic cap and plug manufactured by Caplugs. It is designed to fit a 9/16" outside diameter and a 14 thread size. It is made of durable, flexible polyethylene and is designed to be used to cap open components when an air or liquid-tight seal is not needed. This cap and plug help keep components clean, protected and free from dirt, dust and moisture. The SC-9/16-14 is ideal for use in medical, hydronics, and electronics applications.