Bleeder Screws 1/8 NPT 4pk ALL50180

OVERVIEW

When you are pushing your air-cooled VW to its limits, whether it is a high-speed run down the drag strip or navigating treacherous dunes in a custom sand rail, your braking system is the most critical safety component on the vehicle. The ALLSTAR PERFORMANCE Bleeder Screws are engineered specifically for enthusiasts who have upgraded to high-performance aftermarket calipers that utilize a 1/8 Inch-27 NPT port. A spongy brake pedal is often the result of air trapped in the lines, and these precision-machined bleeder screws ensure that you can achieve a rock-solid pedal feel by providing a reliable, leak-free exit point for trapped air. Don''t let a seized or rounded-off bleeder screw ruin your weekend at the track; keeping a fresh set of these high-quality steel screws in your toolbox is essential for any serious builder or racer.

This 4-pack of bleeder screws is designed with a unique two-piece functionality that makes maintenance a breeze. The base fitting features a 1/8 Inch-27 NPT tapered pipe thread that seats securely into your aftermarket caliper body, while the internal bleeder screw uses a 1/4 Inch-28 thread for fine-tuned control during the bleeding process. This design is particularly popular among Volkswagen enthusiasts running Wilwood, CNC, or other racing-style disc brake conversions on their Beetles, Ghias, or Manx-style buggies. By utilizing a high-grade steel construction with a corrosion-resistant finish, Allstar Performance ensures that these screws will withstand the harsh environments of both the street and the off-road trail, giving you the peace of mind that your hydraulic system is sealed tight and ready for action.

FITMENT

These bleeder screws are intended for use with aftermarket brake calipers and custom hydraulic systems. While stock air-cooled VW calipers typically use metric threads, these are the industry standard for performance upgrades. They are compatible with:

• VW Beetle (All Years): When equipped with aftermarket front or rear disc brake conversions using NPT ports.
• VW Karmann Ghia: Ideal for high-performance builds utilizing Wilwood or CNC calipers.
• VW Type 3 (Squareback, Fastback, Notchback): For custom brake system configurations.
• VW Bus / Type 2: Essential for heavy-duty braking upgrades on Transporters and Campers.
• Dune Buggies & Sand Rails: The standard for most long-travel and mid-engine sand car brake systems.
• Meyers Manx & Kit Cars: Perfect for ensuring a clean bleed on custom street rod or buggy setups.
• General Aftermarket Calipers: Fits many popular racing calipers from brands like Wilwood, Hurst, and CNC.

SPECS

• Brand: Allstar Performance
• Part Number: ALL50180
• Base Thread Size: 1/8 Inch-27 NPT (National Pipe Tapered)
• Internal Bleeder Screw Thread: 1/4 Inch-28
• Material: High-Strength Steel
• Quantity: Pack of 4 Screws
• Finish: Zinc Coated for superior corrosion resistance
• Application: Hydraulic Brake and Clutch Systems

PRO TIPS

Tip 1: Avoid Over-Tightening NPT Fittings

Since the base of these bleeder screws uses a 1/8 Inch NPT thread, it is important to remember that NPT is a tapered thread design. Unlike straight threads that bottom out on a washer or O-ring, NPT threads seal by the interference of the threads themselves. When installing the base into your caliper, do not over-torque it, as you run the risk of cracking the caliper housingespecially if you are working with aluminum racing calipers. Use a small amount of thread sealant on the NPT portion only, and ensure the 1/4-28 bleeder screw itself remains clean and dry to ensure a perfect metal-to-metal seat seal.

Tip 2: The Proper Bleeding Sequence

To get the most out of your new Allstar Performance bleeder screws, always follow the proper bleeding sequence for your air-cooled VW. Start with the wheel farthest from the master cylinder (typically the passenger side rear), then move to the driver''s side rear, followed by the passenger side front, and finally the driver''s side front. This method ensures that air is pushed out of the longest lines first, preventing bubbles from being trapped in the junctions. Having a 4-pack means you can replace all four corners at once, ensuring consistent performance and ease of maintenance across the entire vehicle.

Tip 3: Use a Dedicated Bleeder Wrench

Nothing is more frustrating than rounding off a brand-new bleeder screw. To protect your investment, always use a dedicated 6-point box-end wrench or a specific flare nut wrench when opening and closing these screws. Avoid using open-end wrenches or pliers, as they apply pressure to only two sides of the hex head and are prone to slipping. Additionally, we highly recommend installing rubber dust caps over the nipples after you have finished bleeding the system. This prevents dirt, mud, and road salt from clogging the internal orifice, making your next brake service much easier and preventing potential leaks caused by debris.