3/8" x 16 tpi (coarse UNC pitch). Imperial SAE re-threading / thread cleaning repair tap.
Imperial SAE UNC 3/8" x 16 tpi re-threading thread repair cleaning die
5/16" x 24 tpi SAE Imperial UNF fine re-threading thread repair cleaning die
5/16" x 18 tpi SAE Imperial UNC coarse re-threading thread repair cleaning tap
9/16" x 18 tpi SAE Imperial UNF fine re-threading thread repair cleaning tap
9/16" x 18 tpi SAE Imperial UNF fine re-threading thread repair cleaning die
7/16" x 20 tpi SAE Imperial UNF fine re-threading thread repair cleaning die
