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    | 
      
        | Fitting Thread 
        Size Chart
 
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        | AN HOSE SIZE | SAE 37 DEGREE | SAE 45 DEGREE | SAE INVERTED FLARE | PIPE THREAD SIZE | TUBE OD SIZE |  
        | THREAD | WRENCH | THREAD | WRENCH |  
        | -3 | 3/8 - 34 | 1/2 | 3/8 - 24 | 1/2 | 3/8 - 24 | 1/8 - 27 | 3/16 |  
        | -4 | 7/16 - 20 | 9/16 | 7/16 - 20 | 9/16 | 7/16 - 24 | 1/4 - 18 | 1/4 |  
        | -6 | 9/16 - 18 | 11/16 | 5/8 - 20 | 11/16 | 5/8 - 20 | 3/8 - 18 | 3/8 |  
        | -8 | 3/4 - 16 | 7/8 | 3/4 - 16 | 7/8 | 3/4 - 18 | 1/2 - 14 | 1/2 |  
        | -10 | 7/8 - 14 | 1 | 7/8 - 14 | 1 | 7/8 - 18 |  | 5/8 |  
        | -12 | 1 1/16 - 12 | 1 1/4 | 1 1/16 - 14 | 1 1/4 | 1 1/16 - 16 | 3/4 - 14 | 3/4 |  
        | -16 | 1 5/16 - 12 | 1 3/8 |  |  |  |  | 1 |  |  |