An old-style threaded spindle rod for doorknobs. Made of solid steel, this spindle is sturdy & durable. This particular spindle has a size of 3/8" - 16 threads per inch (TPI), which is a coarser size for doorknobs. Excellent for your reproduction doorknobs, or just a replacement for your old chewed-up spindles.,Hardwick & Sons is pleased to offer vintage-style hardware for the many people who desire to fashion their homes with charm, quality, & style. The traditional-style hardware that we showcase are true & faithful reproductions of classic hardware pieces found in the many homes from across America throughout the past century.,For California Residents:, WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov,WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood Doorknob Swivel Spindle ~ Coarse Thread