9/16" x 18 tpi (fine UNF pitch). Imperial SAE re-threading / thread cleaning repair tap.
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 die
Imperial SAE UNC 5/16" x 18 tpi re-threading thread repair cleaning die
5/8" x 18 tpi SAE Imperial UNF fine re-threading thread repair cleaning die
Recoil Unc Thread Repair Kit 5/16 - 18 Tpi 15 Inserts RCL33058
Connect 3 Way Brake Tube Connector 3/8 UNF x 24 TPI 5pc 31196