Albany County Fasteners will be closed Friday the 27th starting at 2:30pm EST. Office and warehouse operations will resume Tuesday the 31st. Please allow for an additional day handling time for orders to ship. Our website will continue to accept orders and payment during this time.
Internal tooth lock washers are for locking and tension. Teeth on the inside diameter of the washer provide locking tension by "biting down" on the assembly. This tension adds resistance to rotation that may be caused by vibration. Internal Tooth Lock Washers are used to lock assemblies underneath the head of the fastener, and are often chosen over External Tooth Lock Washers because of their smooth finished exterior edge.
Not sure what material you need? Check out our Material Guide to find the right material for your needs!
Trade Names: Serrate Washers, Lock Washers
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