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Internal tooth lock washers are hardened, circular washers with twisted prongs or "teeth" extending inward from the inside edge. The internal "teeth" are used to prevent nuts and bolts from loosening, or backing out, caused by vibration and/or corrosion. These have a zinc-plated finish.
From the Manufacturer
Internal tooth lock washers are hardened, circular washers with twisted prongs or "teeth" extending inward from the inside edge. The internal "teeth" are used to prevent nuts and bolts from loosening, or backing out, caused by vibration and/or corrosion. These have a zinc-plated finish.
patrick J. Branigan
Reviewed in the United States on March 25, 2024
Worth looking for
Dissappointed buyer
Reviewed in the United States on September 26, 2023
It's made well and it does what it's supposed to do.
Stacy & Adam
Reviewed in the United States on September 20, 2014
Really durable, can't say anything bad about them at all.
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