(45pcs) Metric DIN 8140B M20X1.5X20 Metric Helical Thread Repair Inserts, Self Locking Stainless Steel Ships Free in USA

Metric Helical Thread Repair Inserts, Self Locking DIN 8140 These diamond shaped hardened stainless steel thread inserts are typically used to repair stripped female threads. Since the resulting thread is generally stronger than the original thread, these helical inserts are often used in new production to reinforce female threads in high-stress applications. The insert lengths shown are "installed lengths" and they generally follow the formula of 1, 1.5, 2, 2.5 & 3 times the nominal thread diameter. Note that the tangs on the inserts must be removed after insallation.

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