This is the most popular size thread for the banjo type fittings which is M12 x 1.25. The other end has the standard 7/16-20 threaded schrader fitting which is the standard size most fuel pressure testers use.
Fuel Pressure Tester Banjo Fittings Adapters Toyota Injector Cleaning Import
Podavelle M10x1.0 Metric Stainless Steel Double Banjo Bolt M10x1.0, 30mm Long
Connect Brake Hose Banjo Bolt M10 x 1.5 x 28.1mm 5pc 34120
Fuel Pressure Kit, Fuel Pressure Tester with 0-140 psi Fuel Pressure Gauge H...
Fuel Pressure Gauge, Fuel Pressure Test Kit Fuel Injection Tester with 0-140psi
Fuel Pressure Test Kit - Fuel Pressure Gauge - 0-100PSI Fuel Injection Pump
