Lock washers are designed to prevent fasteners from loosening under vibration, torque, or thermal expansion. Commonly used in machinery, automotive, and structural applications, these washers provide extra holding power by biting into the mating surfaces or maintaining tension. GNS Industrial Supply offers a wide range of lock washers—including split, internal tooth, and external tooth styles—in durable finishes like zinc-plated, stainless steel, and black oxide. When you need secure, vibration-resistant fastening, our lock washers deliver long-term reliability and performance.
