The LOCK WASHER INT-EXT ZINC 3/16" features internal and external teeth for superior holding power and a larger bearing surface. Made from hardened spring steel, this washer is ideal for maintaining adjustments in both longitudinal and rotational applications. It effectively provides an optimal electrical connection and compensates for oversized or out-of-round holes. Designed for reliable performance in demanding environments, this washer is essential for ensuring component integrity and stability.