360 Radiator Shootout Begins!..

[Martinm210]

no real way to capture it with a camera. The female ports on the radiator are not threaded wide enough. the fitting gets half way in and then stops. if you try to force it, it just gets stuck

Weird, you probably have a case of bad barbs.

You got my curiosity though, so I just did a quick look myself with the following fittings on the UT60:

• XSPC compression
• Swiftech barb
• Monsoon compression
• Koolance compression
• Bitspower compression
• D-Tek barb
• Bitpower Fatboy Barb
• Bitpower Rotary 45
• Danger Den Fatboy Barb
• Bitspower Rotary 90
• Fesser Compression

All passed with flying colors for me.

Only thing I can think of is I have seen a few odd barbs out there with larger than normal G1/4 threading that are extra tight in some blocks. That or you got unlucky with the particular sample. I think since most female threads are cut with a tap, it's more likely the barbs threading is either too big, or the thread undercut too shallow. I have seen a few barbs with the threading undercut being too shallow too where if the countersink isn't deep enough the threading will stop short, but that too is a barb issue.