Internal tooth lock washers are made of steel for long lasting durability and dependability. Internal teeth secure bolt heads or nuts to prevent backoff rotation for smaller head screws. Washers accommodate snagging or scratching issues.
External tooth lock washers are made of steel for long lasting durability and dependability. Washers prevent loosening of large head screws and integrated bolts into competent assemblies for maximum torsional resistance. Units secure bolt heads or nuts to increase bearing area for greater hardness and rotation without distortion.
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