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Internal Tooth Lock Washers lock into bolt head or nut to prevent backoff rotation, which works best with smaller head screws, such as fillister heads. Hardware is constructed of high quality steel for long lasting durability.

3/8&quot; Internal Tooth Lock Washer - Grade 2 - Steel - Zinc - Pkg of 100

3-8-internal-tooth-lock-washer-grade-2-steel-zinc-pkg-of-100

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