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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.
Rich W
2025-08-02 14:13:34
theses washers were as described and worked perfectly.
Lowell Vanhook
2025-07-19 10:46:57
Internal Tooth Lock Washer
Mary Mary
2025-06-26 11:54:30
These are inexpensive and work great, they dig into my 3d printed parts just enough to hold my screws securely without damaging the surface. - Justin Flint
harold r brown
2024-12-21 10:01:25
Does not hold up, cheap metal
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