AN fittings for street street car (brakes)

Diggindeeper wrote:JIC aluminum fittings are up to 15% weaker. JIC steel fittings is a different story
The problem is a good number of the "AN" fittings you buy are not really AN fittings.

I wasn't referring to the material, but the thread specification they are made to. For example:

AN Fitting: 1/2-20 UNJF-3B
Industrial (JIC): 1/2-20 UNF-2B

UNJF-3B is a tighter tolerance, radius-root thread that is not recognizable to the naked eye.. unless you're calibrated Scholars higher than me have quoted those lesser tolerances to be as much as 40% weaker. Frank13, don't worry one second about properly set-up AN fittings/lines... they make up almost every connection in aircraft today - whether commercial or military.

frank13 wrote:.....are the preformed with fitting lines you can buy at local auto stores good quality...

Don't know, never bought any of the preformed hard line stuff from the parts stores.

If I'm plumbing OEM/low buck style (common steel double flare line & inverted flare fittings) I just get the long straight lengths of brake line from the parts store, & cut/bend/flare what lengths/shapes I need.

jusk ask for seamless tubing , then there is the coated tubing . i just buy 25 ft rolls