Internal Tooth Lock Washers, also known as serrated washers, lock washers that create tension between the washer's teeth and the installation surface. This tension makes the fastener assembly resistant to rotation. Internal Tooth Lock Washers are used to lock assemblies underneath the head of the fastener, and are often chosen over External Tooth Lock Washers for aesthetic reasons.
A2 Stainless Steel Internal Tooth Lock Washers offer a durable and long lasting assembly due to the corrosion resistant properties of Stainless Steel. A2 Stainless Steel is the Fastener Industry standard for Stainless Steel Fasteners.