Thread adaptors for fixing or securing the pumps in different drums. All hand pumps come with 2" BSP male thread or use with 9001 when supporting drum pump. (Discount available when purchasing with a drum pump) 2ì BSP fine, female thread to Trisure coarse, male thread (Orange) 6007 2ì BSP fine, female thread to 2ì Mauser coarse, male thread (Blue) 6008 2ì BSP fine, female thread to DIN 71, female thread (Brown) 6001 2ì BSP fine, female thread to DIN 61/31, male thread (Grey) 6002 2ì BSP fine, male thread to DIN 61/31, male thread (Black) 6003 2ì BSP fine, female thread to DIN 61/31, female thread (Yellow) 6004 2ì BSP fine, female thread to ASTM ÿ 63 mm, female thread (White) 6005 2ì Mauser coarse, fem. thr. to Trisure coarse, male thread (Red) 6006 2ì BSP fine, female thread to DIN 51, female thread (Green) 6009 Classification (without any obligations): BLUE External thread Mauser for 200 liter plastic drums (coarse thread 69 mm) ORANGE External thread Trisure for 200 liter plastic drums (fine thread 56 mm) YELLOW Internal thread DIN 61/31 for 30 liter plastic container (59 mm) BROWN Internal thread DIN 71 for 60 liter plastic container (71 mm)