Metric Double Banjo Bolts - Race Spec - Stainless Steel

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Copper Crush Washers +£0.66

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Race Spec Stainless Steel Double Banjo Bolts – Lockwire Ready

Developed for motorsport, our Race Spec Stainless Steel Double Banjo Bolts are engineered for dual-line brake and clutch systems where precision and safety are critical. CNC-machined in the UK from high-grade stainless steel, each bolt is pre-drilled through the hex head to accept 0.8mm lockwire – ideal for preventing loosening due to vibration in race conditions.

Why Choose Our Race Spec Double Banjo Bolts?

Designed for Racing Environments

Pre-drilled for lockwire, these bolts offer essential fail-safe protection in competitive and high-vibration conditions, keeping your hydraulic connections secure and compliant with motorsport best practices.
Dual Banjo Compatibility

Allows the connection of two banjo fittings at a single port – perfect for dual-line brake setups or compact clutch systems in motorsport builds.
Premium Stainless Steel Build

Crafted from corrosion-resistant stainless steel, these bolts deliver strength and durability to withstand race-day stress and repeated service cycles.
Leak-Free Under Pressure

Precision-machined threads and tight tolerances ensure a dependable seal in high-pressure hydraulic systems.
Thread Sizes Available

Available in key motorsport thread sizes:
- M10 x 1.00
- M10 x 1.25
Optional Copper Crush Washers

To complete the installation, pair with Copper Crush Washers (sold separately) for a leak-free connection.

What is a Double Banjo Bolt?

A double banjo bolt is a hollow fastener designed to connect two banjo fittings to a single hydraulic port. Its dual-channel design allows fluid to flow through both fittings while maintaining a high-pressure seal – essential in complex brake and clutch systems commonly used in motorsport.

Installation

Each installation requires three copper crush washers (not included) – one between each banjo fitting and one on each outer side. For motorsport use, secure the bolt with 0.8mm stainless lockwire through the pre-drilled hex head for maximum safety and compliance.

Track-Proven Performance

From club-level racers to pro-level builds, our Race Spec Stainless Steel Double Banjo Bolts are trusted where reliability and performance are non-negotiable. Pre-drilled, lockwire ready, and purpose-built for competitive motorsport.

Bolt Type: Double Banjo Bolt Designed for use with two banjo fittings
Head Type: Pre-drilled Hex Head Compatible with 0.8mm stainless steel lockwire
Material: 303/304 Stainless Steel Excellent strength and durability
Finish: Natural Stainless Steel Corrosion-resistant
Manufactured In: United Kingdom Precision CNC machined

Flow Design: Unrestricted No internal flow restriction
Seal Type: Crush Washers Three required for installation

Available Race Spec stainless steel double banjo bolt sizes and dimensions
Product Code	Thread	Thread Length	Bolt Length Below Hex Head	Spanner Size
BLT-DBL-R-SS-M10X100	M10 x 1.00	11mm	29mm	12mm
BLT-DBL-R-SS-M10X125	M10 x 1.25	11mm	29mm	12mm

Dual Brake Lines
Brake Systems
Clutch Systems
Motorsport
Track Cars

Brake Fluid
Clutch Fluid
Hydraulic Fluid

Copper Crush Washers

Three crush washers are required for installation, one either side of the banjo fittings and one between them.

Free repair or replacement for two years from the date of purchase. Learn more

Frequently Asked Questions

What are race spec stainless steel double banjo bolts used for?
Race spec double banjo bolts are designed for motorsport brake and clutch systems where two banjo fittings need to be connected to a single hydraulic port. The pre-drilled hex head allows for lockwiring, helping prevent loosening in high-vibration, high-stress racing environments.
What sizes are available for these race spec double banjo bolts?
These bolts are available in two key thread sizes commonly used in motorsport applications:
- M10 x 1.00
- M10 x 1.25
Why are these bolts pre-drilled?
The pre-drilled hex head allows for the use of lockwire (0.8mm recommended), which prevents the bolt from loosening under vibration. This is a critical safety feature for motorsport applications where secure hydraulic connections are essential.
Are these compatible with custom braided hoses?
Yes, these race spec double banjo bolts are fully compatible with our range of custom braided hoses and fittings, including those used in high-performance and motorsport setups.
What material are these banjo bolts made from?
They are CNC-machined from high-grade stainless steel, providing excellent corrosion resistance, strength, and long-term durability under repeated racing conditions.
What do I need for proper installation?
Each bolt requires three copper crush washers (not included): one between each banjo fitting and one on each outer side. For racing use, apply 0.8mm stainless lockwire through the pre-drilled hex head to ensure maximum security.