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Key Locking Inserts

Easily repair stripped and bad threads with key locking inserts (AKA key locking threaded bushing), available in metric, UNC, UNF and UNS thread types, in black phosphate steel and 18-8 stainless steel. Size considerations include internal thread size, external thread size, and length. For more on threaded inserts, see our self locking inserts and inserts.

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