the grease fitting(straight) grease fitting, lubricating fitting,lubricator nozzle:from M6 to M22,from 1/16"to G3/8 , the grease fitting(straight):from M6 to M22,from 1/16"to G3/8 ,this thread :Metric and Inch size,we can make this grease fitting depend on this buyer ask grease fitting,lubricating fitting,lubricator nozzle