3/16″ & 1/4″ Stainless-Steel Brake Line Fitting Assortment (32-Piece)

Keep every brake-line project covered with the 4LifetimeLines® 32-Piece Stainless-Steel Brake Line Fitting Assortment. Machined from marine-grade 316L stainless steel, this comprehensive kit includes both SAE and metric tube nuts, unions, adapters, tees, and end caps in the most popular sizes for 3/16″ and 1/4″ tubing. Whether you’re fabricating custom loops, repairing fleet vehicles, or servicing imports and domestic cars, you’ll have the right flare-nut on hand—every time.

What’s Included

SAE Fittings for 3/16″ & 1/4″ Lines (16 pcs)

Tube Nuts (various lengths and thread pitches)

Straight Unions, 45° & 90° Adapters, Tees, End Caps

Metric Fittings for 3/16″ & 1/4″ Lines (16 pcs)

Tube Nuts (M6, M8, M10 series)

Metric Unions, Adapters to SAE ports, Tees, End Caps

All 32 fittings feature standardized flare-nut threads and wrench flats for secure, leak-free connections on properly flared tubing.

Why You Need This Kit

Mixing metric and SAE systems is common in modern and imported vehicles. This one-stop assortment eliminates mismatches and last-minute trips for missing parts. Precision 316L stainless construction resists salt spray, brake-fluid vapors, and corrosion—ensuring every seal stays tight through thermal cycling and vibration. Backed by our lifetime warranty, this kit lets you finish jobs faster and with confidence, knowing you’ll never run out of the fitting you need.

Ready for every brake-line combination in one kit? Add the 3/16″ & 1/4″ Stainless-Steel Brake Line Fitting Assortment (32-Piece) to your cart now and build leak-proof systems without compromise.