Brake Line Union 4LifetimeLines Brass M10

Description

Product Overview

The 4LifetimeLines 10mm brake line union is engineered for precision and durability. Constructed from a brass body with a nickel finish, it resists salt‑induced corrosion, making it perfect for winter driving and coastal environments. The union features a 0.1875‑inch (M10×1.0) inverted‑flare thread, compatible with a wide range of brake line materials including steel, CuNiFer, copper‑coated steel, PVF‑coated steel, and stainless steel. Each package contains ten pieces, each weighing 5.7 ounces, and the compact 7 × 4 × 0.5 inch dimensions allow easy storage and handling.

Usage

Designed for automotive brake system repairs, this union is ideal for replacing or extending hard brake lines on domestic and import vehicles. Whether you are servicing a daily commuter, a performance car, or a fleet vehicle, the union provides a secure, leak‑resistant seal that meets OEM specifications. It is especially valuable in rust‑belt regions where brake line corrosion is a common concern.

Why Choose Us

4LifetimeLines backs every union with a lifetime warranty, reflecting confidence in material quality and manufacturing precision. The brass construction outperforms plain steel by offering superior corrosion resistance without sacrificing strength. Our unions are tested for hydraulic pressure compliance, ensuring they maintain integrity under demanding braking conditions. Additionally, the product’s best‑seller rank in the automotive replacement brake fittings category demonstrates trusted performance among mechanics and DIYers alike.

Key Features

• Corrosion‑resistant brass body with nickel finish for long‑term durability
• M10×1.0 inverted‑flare threads ensure a tight, leak‑free hydraulic seal
• Compatible with steel, copper‑coated, PVF‑coated, and stainless brake lines
• Pack of 10 unions, each lightweight and easy to install
• Lifetime warranty from 4LifetimeLines for shop and DIY use

FAQ

What brake line sizes does this union fit?

The union is sized for 3/16″ (4.75 mm) brake lines and uses M10×1.0 inverted‑flare threads, matching the specifications of many domestic and import vehicles.

Is the brass material suitable for harsh climates?

Yes, the brass body with a nickel exterior finish provides excellent resistance to salt and moisture, making it ideal for winter driving and coastal areas where corrosion is a concern.

Can I use this union with stainless steel brake lines?

Absolutely. The union is designed to work with stainless steel as well as other common brake line materials, ensuring a versatile fit for various repair scenarios.

Do I need any special tools to install the union?

Standard brake line flaring tools and a torque wrench are sufficient. Follow the manufacturer’s torque specifications to achieve a proper seal.

What warranty does 4LifetimeLines offer?

Each union comes with a lifetime warranty covering defects in material and workmanship, providing peace of mind for both professional shops and DIY enthusiasts.