M10 Hollow Banjo Bolt Brake Caliper Oil Drain Screw Titanium

AOGUTU M10 Hollow Banjo Bolt — Brake Caliper Oil Drain Screw

Upgrade your braking system with the AOGUTU M10 Coarse-Thread Hollow Banjo Bolt — a precision-machined oil drain pipe screw designed for electric friction disc brake systems, upper and lower pump calipers. Finished in a striking burned titanium coating, this screw combines function with aesthetics, making it ideal for performance builds, custom motorcycles, e-bikes, and brake caliper restoration projects.

Key Features

• Material: High-grade stainless steel for superior corrosion resistance and long-lasting durability
• Finish: Burned titanium — heat-treated for a premium look and added surface hardness
• Thread Size: M10 coarse thread — compatible with a wide range of disc brake calipers and brake pump fittings
• Head Style: Hex head with hex socket (Allen key) drive for secure, easy installation and removal
• Type: Hollow machine screw / banjo bolt — allows fluid passage for brake line connections
• Application: Oil drain pipe screw for electric and hydraulic disc brake systems (upper and lower pump, caliper mounting)
• High-Concern Chemicals: None — safe for use in your build

Specifications

• Brand: AOGUTU
• Model: M10 Coarse Tooth Hollow Banjo Bolt
• Drive Style: Hex Socket
• Head Style: Hex
• Screw Type: Machine Screw (Hollow / Banjo)
• Material: Stainless Steel
• Finish: Burned Titanium
• Made in Mainland China

What Is a Hollow Banjo Bolt?

A hollow banjo bolt (also called a banjo screw or oil drain pipe screw) is a specialized fastener with a through-hole that allows hydraulic fluid or brake fluid to flow through. It is critical in disc brake systems, connecting brake lines to calipers and master cylinders (upper and lower pumps). The M10 coarse-thread sizing is one of the most common standards for motorcycle, e-bike, and performance vehicle brake systems.

Who Is This For?

This bolt is perfect for DIY mechanics, custom bike builders, and motorsport enthusiasts looking to replace worn or corroded banjo bolts, or simply add a titanium-finish upgrade to their brake system. The burned titanium look adds a high-end, race-inspired style to any caliper or brake pump assembly.

For more information on brake system safety and maintenance, visit the U.S. Consumer Product Safety Commission (CPSC) for guidance on vehicle safety components.

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Frequently Asked Questions

Q: What thread size is this hollow banjo bolt, and will it fit my brake caliper?

A: This screw uses an M10 coarse thread, which is a standard thread pitch widely used across disc brake calipers, upper pump fittings, and lower pump assemblies on motorcycles, e-bikes, and performance vehicles. Always verify your caliper's thread specification before purchasing to ensure compatibility.

Q: Is the burned titanium finish purely cosmetic or does it offer functional benefits?

A: The burned titanium finish is both aesthetic and functional. The heat-treatment process adds a layer of surface hardness and oxidation resistance, which helps protect the bolt from minor corrosion and wear in addition to giving it a premium, race-inspired appearance.

Q: What material is the hollow brake screw made from?

A: This banjo bolt is machined from high-grade stainless steel, ensuring excellent resistance to rust, corrosion, and the hydraulic brake fluids typically used in disc brake systems.

Q: Can this screw be used on electric friction disc brake systems?

A: Yes. This hollow screw is specifically designed for electric friction disc brake systems and is compatible with standard upper and lower pump caliper oil drain pipe connections using M10 coarse threading.