A closed Nord Lock washer employs the proven wedge-locking principle: paired washers with cam faces on the inside and radial teeth on the outside work together to lock a bolted joint by tension rather than friction.
The term “closed” refers to the washer configuration supplied as two mating parts pre-assembled or paired specifically for precision locking. In stainless steel form, the closed Nord Lock washer is particularly well suited to corrosive, high-temperature, and high-load environments.
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