Enhance the security of your fastening applications with our External Tooth Lock Washer. Crafted from durable Stainless Steel, this washer is designed to provide reliable locking and prevent loosening of screws or bolts. With an ASME B18.21.1 specification and a precise measurement of .373 inches in outside diameter and .021 inches in thickness, it ensures a perfect fit for your #8 hole size. The strategic placement of external teeth guarantees a tight grip, making it ideal for high-vibration environments. Rest assured, this washer is fully compliant with RoHS standards, offering both performance and environmental responsibility. Upgrade your assembly process with this essential component for optimal durability and stability.