What size is the thread on a Japanese brake line?
The standard thread size for Japanese brake lines is M10 x 1.0. This means the threads have a diameter of 10 millimeters and a pitch (distance between threads) of 1.0 millimeters. This thread size is commonly used on brake lines and fittings for many Japanese-made vehicles.
Understanding Brake Line Thread Sizes
Brake lines are an essential component of a vehicle's braking system, responsible for transmitting hydraulic pressure from the master cylinder to the individual wheel brakes. The threads on the ends of the brake lines allow them to be securely connected to the various fittings and components in the braking system.
Thread sizes for brake lines are typically specified using a metric system notation, such as M10 x 1.0. The first number (10 in this case) refers to the diameter of the threads in millimeters, while the second number (1.0) indicates the pitch, or distance between the threads, also in millimeters.
Why M10 x 1.0 is Common for Japanese Vehicles
- The M10 x 1.0 thread size provides a secure, leak-proof connection that can withstand the high pressures found in a vehicle's braking system.
- This thread size is widely used across a variety of Japanese-made vehicles, from compact cars to larger trucks and SUVs, making it a standardized and readily available option.
- The smaller 1.0 mm pitch allows for a finer, more precise thread engagement compared to coarser pitches, further enhancing the integrity of the connection.
It's important to note that while M10 x 1.0 is the most common thread size for Japanese brake lines, there may be some variations depending on the specific make, model, and year of the vehicle. Always refer to the manufacturer's specifications or consult a professional when working on a vehicle's braking system.
What size are brake line threads?
3/16" (4.75mm): This is the most common size used in most passenger vehicles. It is often referred to as the "universal size" for brake lines. 1/4" (6mm): Typically found in trucks and larger vehicles, this size can handle higher pressure and is used in applications where the braking system requires more robust lines.
Are all brake line threads the same?
No, some vehicles have UNF thread forms, some have SAE and these days most have Metric. Some hydraulic lines are a different diameter from others. Even the ends of the brake lines can be a different shape with bell shaped or rounded ends.
Why are copper brake lines illegal?
The Society of Automotive Engineers determined the corrosive deterioration of the steel brake line was at fault. The industry switched to brake lines made from 100% copper. These lines burst from the pressure causing even more accidents. People demonized the copper brake lines.
Should I use 3/16 or 1/4 in brake line?
When a replacement line is needed, the obvious question is what size brake line to get. The answer is really pretty easy. Almost every car or truck worldwide utilizes a 3/16-inch brake line, also referred to as a CNF-3.
What are the two types of brake line fittings?
Types of Brake Line Fitting
- Double Flare Fittings: These are widely used in automotive brake systems.
- Bubble Flare Fittings: Bubble flare fittings, also known as single flare fittings, are commonly found in European vehicles.
- AN (Army-Navy) Fittings: AN fittings are used in racing and high-performance applications.
What is the outside diameter of 1 4 brake line?
0.25 Inches
Measurements
| Product Dimensions | 300"L x 0.25"W |
|---|---|
| Inside Diameter | 0.25 Inches |
| Item Weight | 0.76 Kilograms |
| Nominal Wall Thickness | 0.25 inch |
| Outside Diameter | 0.25 Inches |
What size is Japanese brake line?
JAPANESE STANDARD BRAKE LINES
| Part | Description |
|---|---|
| BLJ-3-40 | 3/16 ID, 40", 10 x 1.0mm Thread |
| BLJ-3-51 | 3/16 ID, 51", 10 x 1.0mm Thread |
| BLJ-3-60 | 3/16 ID, 60", 10 x 1.0mm Thread |
| BLJ-3-72 | 3/16 ID, 72", 10 x 1.0mm Thread |
Are brass fittings ok for brake lines?
DO NOT USE COMPRESSION FITTINGS to join brake lines. Compression fittings are designed for lower-pressure lines such as those used for fuel, compressed air, and water. These fittings are commonly made of brass, but they're complicated.
Is it OK to use copper brake lines?
Steel brake lines can be replaced with copper ones – TRUE
After disproving myths related to brake lines, we would like to show that copper lines can be used in brake systems. They are the standard value replacement of steel lines if they meet all the aspects listed above and the technical requirements.
Is it OK to single flare brake line?
Single flares are not durable enough to withhold the pressure and are to never be used on steel brake lines. Brake lines can leak after installment if they are not fitted properly.
