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The Connect Brake Bleed Screws (3/8 UNF x 24 TPI, 31mm) are essential components for automotive technicians and DIY enthusiasts performing hydraulic brake system maintenance on a wide range of vehicle makes, including Ford, Land Rover, and Mitsubishi. These durable screws allow for the controlled release of air and old fluid during the bleeding process, ensuring optimal braking pressure; however, it is critical to verify thread pitch and length match your specific vehicle's brake caliper requirements before installation to prevent thread stripping.
| Model Part Number | 34212 |
|---|---|
| Brand | Connect |
These screws are 3/8 UNF (Imperial thread). They will not fit calipers requiring metric thread pitches.
You should use a 10mm spanner to fit the hex head on these screws.
Yes, provided your specific vehicle uses 3/8 UNF x 24 TPI threads for the bleed screws.
This set includes 5 bleed screws only; it does not include rubber dust covers.
The length determines how far the screw extends into the caliper; 31mm is the standard dimension required for proper sealing in the specified applications.
Ensure the screw is seated properly and verify that the thread size (3/8 UNF) matches your caliper; if the leak persists, check for damage to the internal caliper seat.
Ensure you are using a 10mm spanner in good condition; if the head is already rounded, use a six-point socket to remove it.
Check that the screw is opened enough to allow fluid flow and verify that the master cylinder is kept full during the process.
To install these screws, ensure the brake system is depressurized. Clean the area around the old bleed screw thoroughly with brake cleaner to prevent debris from entering the caliper bore. When installing, tighten by hand first to ensure the threads are properly aligned, then finalize the fitment using a 10mm spanner like the Laser Part No. 1554. Avoid overtightening, as this can damage the conical seat at the base of the screw. Regularly inspect the screws for signs of corrosion or fluid buildup to maintain peak safety standards.
