How do you join brake lines together?

Take the new brake line section underneath the vehicle. Screw one male fitting from the vehicle line into one female fitting on the new line, by hand. Do the other side the same. If you need to, pull the vehicle brake line backward or forward to connect the threads — they will slide in the hanger fittings.Click to see full answer. Consequently, will single flare work on brake lines?Single Flares are only acceptable on low-pressure lines, but not acceptable for high-pressure brake systems. A single flare is just as it sounds, the line is flared out just once in a conical shape. Single flares are not acceptable for brake lines and tend to crack and leak quite easily.Additionally, how tight should brake lines be? Just snug them up, till you feel resistance, then maybe 1/8 turn. You just need good pressure between the flared faces. If you go too far you will cause more work, so take them to this point, then bleed the brakes. Check all fittings and if you find a leak give it another 1/8 turn or so. Regarding this, is it OK to use compression fittings on brake lines? Because of the unreliability of compression fittings on brake lines, the use of compression fittings is not widely recommended. If you are repairing the brake lines in a vehicle that is not a passenger car used for everyday road travel and transportation, compression fittings are an acceptable brake line repair.Will JB Weld work on a brake line?Sorry, but the ONLY safe thing to do is replace the brake line. JB weld is great stuff, but not on the most important part of controlling your car. Don’t even use a compression fitting on your brake system. You will press on the brakes as hard as you can in a panic stop situation.