New XKG Knob XKG(40) M6 x 7, AISI 316, Blue NBR 1021911 Height:25.00 mm (0.98")|Knob size:40.00 mm (1.57")|Material:AISI 316|Net weight:98.00 g (0.22 lbs)|Sealing material:Blue NBR|Thread size:M6|Thread standard:Metric C View