Brake Line Fittings Assortment — Inverted Flare Union Connectors
A comprehensive brake line fitting assortment covering the most common tube sizes and thread specifications used in automotive brake systems. Available in multiple configurations — from 2-piece single-size packs to 15-piece assortments with optional hose clamps — for repair, replacement, and custom brake line builds.
Available Options
Option
Tube Size
Includes
2 PCS
5/16"
Union connectors
2 PCS
3/8"
Union connectors
15 PCS
3/16"
Tube fittings
15 PCS
1/4"
Tube fittings
15 PCS + 10 Clamps
3/16"
Fittings + hose clamps
15 PCS + 10 Clamps
1/4"
Fittings + hose clamps
Thread & Tube Compatibility
Tube Size
Thread Options
3/16"
3/8-24 Inverted Flare
1/4"
7/16-24 Inverted Flare
5/16"
1/2-20 Inverted Flare
3/8"
5/8-18 Inverted Flare
Metric
M10×1.0
Precision Fit. Reliable Seal.
Inverted Flare Union Type — standard automotive brake line connection for leak-free, pressure-rated joints
4 Tube Sizes Covered — 3/16", 1/4", 5/16", and 3/8" for broad vehicle compatibility
Multiple Thread Standards — SAE and metric (M10×1.0) options for domestic and import vehicles
Optional Hose Clamp Kits — select variants include 10 clamps for complete repair kits
Universal Automotive Fit — compatible with most cars, trucks, and light-duty vehicles
