I bought these before reading the reviews and after not "feeling" the threads during installation I went back and checked. .550 on quarter inch fittings. The default is 0.540 and it seems that most of them are actually around 0.530, making the problem worse. I solved it with sandpaper and a heavy wire brush application. I clamped them with a metal vice and now they don't seem to flow. If I didn't need them immediately I would send them back.
Joywayus 5/8" ID Hose Barb Hex Union Brass Fitting Water/Fuel/Air With 10 Stainless Steel Clamps (Pack Of 5)
13 Review
High-Quality QiiMii Stainless Steel Sanitary Clamp With Silicone Gasket - 2 Inch, Single Pin Tri Clover Design
16 Review
Upgrade Your Draft Beer Kegerator With The TerraBloom CO2 Keg Pressure Regulator - Dual Gauge Heavy Duty Unit With Safety Features
16 Review
1 Inch Beduan Brass Electric Solenoid Valve, 12V Normally Closed Air Valve For Water, Gas, Fuel, And Oil
10 Review