M10x1 M14x1.5 M20x1.5 1/8" 1/4" 1/2" 3/4" Female to Male Thread Brass Pipe Fitting Bushing Coupler Adapter - AliExpress
DIN Male 12S (M20X1.5 O-Ring Male) X JIC Male -06 - Bosch Hydraulic Connections Ltd.
Amazon.com: uxcell Pipe Fitting Reducer Adapter M20X1.5 Male to 1/2 G Female, Stainless Steel for Water Oil Air Pressure Gauge : Industrial & Scientific
Setrab Oil Filter Adapter with 180°F Thermostat, M20x1.5, 19-SPT76-20-180-22
Amazon.com: uxcell Pipe Fitting Reducer Adapter M20X1.5 Male to 1/2 G Female, Stainless Steel for Water Oil Air Pressure Gauge : Industrial & Scientific