AB Tools Brake Caliper Bleeding Bleed Nipple Screw - 3/8" x 20 BSF - 4pc
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Product Information
Full details
This guide is for mechanics and DIY enthusiasts performing brake maintenance. The AB Tools Brake Caliper Bleeding Bleed Nipple Screw offers a durable and precise solution for bleeding brake systems, preventing air and fluid leaks. A key consideration is ensuring the thread size compatibility with your specific brake system.
All features
| Model Part Number | FM002 |
|---|---|
| Brand | AB Tools |
Extended Product Information
FAQs
What does 3/8" x 20 BSF mean?
This refers to the thread size. '3/8"' is the diameter, and '20 BSF' indicates the number of threads per inch (20) and the thread form (BSF - British Standard Fine).
Can I use these on any vehicle?
You can use these if your vehicle's brake calipers are designed for a 3/8" x 20 BSF thread size and 6mm brake pipes. Always check your vehicle's specifications before purchasing.
How tight should I make the bleeder screw?
Tighten until snug, with no signs of leakage. Overtightening can strip the threads in the caliper or break the screw. A common torque spec for bleeder screws is around 5-10 Nm, but refer to your vehicle's service manual.
What is the total length of the threaded part?
The total length of the thread under the hex head is 8mm.
Are these prone to rusting?
As they are made of steel, they can be susceptible to rust if exposed to moisture over time. Applying a light coating of anti-seize compound to the threads can help prevent this.
How many bleeder screws are included in a pack?
Each pack contains 4 bleeder screws.
Troubleshooting
Bleeder screw won't thread in properly
Verify the thread size (3/8" x 20 BSF) and ensure the caliper threads are clean and not damaged. Do not force the screw; remove and re-attempt carefully.
Fluid or air leaking around the bleeder screw during bleeding
Check that the screw is tightened sufficiently (but not overtightened) and that the seal is forming correctly. Ensure the thread length is appropriate for the caliper.
Bleeder screw is seized or difficult to turn
Apply a penetrating lubricant and allow it to soak. Use a well-fitting spanner or socket and apply steady pressure. If it remains seized, professional assistance may be required to avoid caliper damage.
Pros and Cons
Pros
- Prevents air and fluid leaks for effective brake bleeding.
- Made from strong, durable steel.
- Easy to install and remove with standard tools.
- Designed for common 6mm brake pipes.
- Pack of 4 offers good value.
Cons
- Thread size (3/8" x 20 BSF) is specific and may not fit all vehicles.
- Steel construction, while durable, can be susceptible to rust if not maintained.
- Requires correct torque to avoid damage to the caliper or pipe.
Setup, Compatibility & Care
Compatibility:
- Thread Size: Ensure your vehicle's brake caliper threads match the 3/8" x 20 BSF specification.
- Pipe Size: Designed to fit on 6mm brake pipes.
Setup:
- Clean the caliper where the bleeder screw is located.
- Carefully thread the new bleeder screw into the caliper. Avoid cross-threading.
- Tighten the screw using a spanner or deep socket on the hex head. Do not overtighten, as this can damage the caliper.
Care:
- After use, clean any excess fluid from the nipple.
- Apply a small amount of anti-seize compound to the threads before installation if storing for extended periods or in a humid environment to prevent seizing. Ensure the compound does not contaminate the brake fluid system.
- Inspect the nipple for any signs of damage or wear before each use.