Brass 1/2″ Bsp Male Thread Adapter to 12mm Hose Barb

Description Brass 12mm hose barb with 1/2″ Bsp male thread. 1/2″ = 19mm 12mm brass tail suits standard garden hose. 12mm hose clamps and 12mm John Guest caravan fittings are also available from our website. Thread Type and Size Chart BSP size (British Standard Pipe)                                  Actual Diameter Imperial        Actual Diameter Metric 1/8” BSP               0.35 inch                                     9 mm 1/4” BSP               1/2 inch                                      12 mm 3/8” BSP               6/10 inch                                    15 mm 1/2” BSP               3/4 inch                                      19 mm 3/4″ BSP               1 inch                                          25 mm 1”  BSP                  1 & 1/4 inch                               31 mm 1 & 1/4″ BSP        1 & 2/3 inch                                40 mm 1 & 1/2″ BSP        1 & 3/4 inch                                45 mm 2”  BSP                  2 & 1/4  inch                             57 mm UNS size (Unified National Special)                         Actual Diameter Imperial        Actual Diameter Metric 7/16” UNS             0.4375”                                     11 mm