Helical Insert, UNC 1 3/8-6X1D, PK10, Free Running, Material 304 Stainless, Length: 1.375", Right Hand Thread Direction.
. STI Tap size: 1 3/8-6. Application for Metal; High-quality wire thread inserts strengthen thread and provide for longer thread life.Helical Insert, Free-Running, 1-3/8"-6 Thrd Sz, 18-8 Stainless Steel, 10 PK These inserts can also be provided with full traceability and conformity certificates.