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SKU: LTSFK316
3/16" Brake Line Fitting Kit
The 4LifetimeLines® 3/16″ Brake Line Fitting Kit (LTSFK316) supplies every common SAE tube nut you need to fabricate or replace 3/16″ hard lines. With 16 precision-machined fittings in popular thread sizes, this kit works flawlessly on steel, copper-nickel, stainless-steel, copper-coated, and PVF-coated tubing. Each tube nut threads securely onto properly flared lines to deliver leak-free connections that meet DOT standards, and all components carry our lifetime warranty for long-term peace of mind.
Whether you’re routing custom brake, fuel, or hydraulic lines, this compact assortment ensures you always have the right SAE nut on hand—eliminating last-minute trips for missing fittings and letting you finish every job faster and more reliably.
Ready to stock your toolbox with essential SAE fittings? Add the 3/16″ Brake Line Fitting Kit (LTSFK316) to your cart now and build leak-proof lines with confidence.

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drove 500 miles round trip to get an OEM crossover brake line for JKU 2011. ONLY dealer, supplier that had one. Checked against VIN all good ... Under the Jeep and I discover that although the tube was all the right bends, right length the FITTING to the crossover connection was the wrong size. Can not find brake fittings for my Jeep so I now have hydraulic flare tool and enough tube, connections and clips to keep my Jeep stopping when it needs to. Fast efficient and good products at decent prices PLUS they have the stuff !