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Banjo Bolts

Stainless steel, steel and anodised alloy banjo bolts for brake, clutch, fuel, power steering and turbo oil feed applications. BRT Motorsport stocks 26 sizes and configurations, all sold individually.

What is a banjo bolt?

A banjo bolt is a hollow bolt that lets fluid pass through it. It clamps a round "banjo" hose fitting against a port — on a brake caliper, master cylinder, turbocharger or fuel rail — with a copper sealing washer either side. Fluid enters through drillings in the bolt's shank and flows out through the hose. It is used wherever a hose needs to attach at an angle, or in a space too tight for a conventional threaded fitting.

Which size do I need?

Banjo bolts are identified by thread diameter and pitch — M10 x 1.0 is a 10mm bolt with a 1.0mm pitch, and it will not fit an M10 x 1.25 port. Measure or identify the port thread before ordering.

Stainless steel — brake, clutch and fuel applications:

  • M8 x 1 — £2.10
  • M10 x 1 — £2.10 · M10 x 1.25 — £2.10 · M10 x 1.5 — £2.10
  • M12 x 1 — £2.45 · M12 x 1.25 — £2.75 · M12 x 1.5 — £2.75
  • 3/8" UNF — £2.10 (for AN-3 braided brake hose banjo ends)
  • 7/16" x 20 UNF — £2.75 · 7/16" x 24 UNF — £2.75
  • 7/16" x 20 UNF, 25mm length — £5.99. For AN-4 banjo ends, and also useful with AN-3 where a longer bolt is needed
  • 1/8" BSP — £2.10

Anodised alloy — lightweight, for AN fittings, fuel and power steering:

  • M14 x 1.25 · M14 x 1.5 · M16 x 1.5 · M18 x 1.5 — all £3.95
  • M14 x 1.5 also available in steel — £2.10

Other:

  • 1/2" x 20 UNF, zinc plated — £5.20. Commonly used on power steering systems
  • 3/8" x 24 UNF banjo brake light switch — £12.95. A direct replacement for the standard master cylinder brake switch

Single or double?

A double banjo bolt is longer and takes two banjo fittings stacked on one port, with a copper washer between them as well as top and bottom. Use one where two hoses need to leave a single outlet — a bias valve feed, or a dual-circuit master cylinder.

  • M10 x 1 — £2.45 · M10 x 1.25 — £2.45 · 3/8" UNF — £2.45

Restricted turbo banjo bolts

A turbocharger bearing housing needs a metered oil supply, not full system pressure. Too much oil floods the bearing housing and forces oil past the turbo seals into the compressor or turbine housing — which looks like a failed turbo but is usually a feed problem. A restricted banjo bolt has a small internal orifice that limits the flow rate to the correct level.

  • 7/16" x 24 UNF — Garrett turbo oil feed, 2mm internal orifice — £5.90
  • M12 x 1.5 — 2mm internal orifice, common on European and Japanese turbo engines — £5.90
  • M12 x 1.25 — 2mm internal orifice, common on Nissan, Toyota and Mitsubishi — £5.90
  • M10 x 1.5 — 1.5mm internal orifice, common on VAG group engines — £5.90

Always use the restriction size specified by your turbocharger manufacturer. Fitting an unrestricted bolt to a journal-bearing turbo that requires one is a common cause of oil seal failure.

Torque settings

Banjo bolts seal by crushing a copper washer, so they need enough torque to deform the washer and no more — overtightening will stretch the bolt or strip the port, particularly in alloy.

  • Steel and stainless steel banjo bolts — 24 to 30 Nm
  • M8 banjo bolts — 7 to 14 Nm
  • Aluminium banjo bolts (M10) — 16 to 20 Nm. Alloy bolts always take less torque than steel of the same size

These are general guidance figures. Where the vehicle manufacturer specifies a torque for that fitting, always use theirs.

Copper washers — don't forget them

Every banjo bolt needs two copper sealing washers, one either side of the banjo fitting. They are single-use: the seal is made by crushing the copper, so a reused washer is the most common cause of a weeping banjo joint. We stock a washer for every bolt size we sell:

  • M8 — £0.20 · 10mm & 3/8" — £0.11 · M12 — £0.26 · 7/16" — £0.20
  • 14mm — £0.30 · 16mm — £0.32 · 18mm — £0.36

Read next: Brake Line Fittings and Adaptors: A Complete Guide — thread sizes, seat types, flares and how to identify what you have.

Filters

3 8" UNF Stainless Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

3/8" UNF Banjo Bolt

BRT Motorsport
In stock

3/8" UNF Stainless Steel Banjo Bolt A stainless steel 3/8" UNF banjo bolt for use with AN-3 (-3) braided brake hose banjo end fittings. The 3/8" UN...

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£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
3 8" unf Stainless Steel Double Banjo Bolt
£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45

3/8" UNF Double Banjo Bolt

BRT Motorsport
In stock

3/8" UNF Double Banjo Bolt — Stainless Steel A stainless steel 3/8" UNF double banjo bolt, designed to accept two banjo fittings on a single port. ...

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£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45
7 16" x 20 Stainless Steel unf Banjo Bolt
£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75

7/16" x 20 UNF Banjo Bolt

BRT Motorsport
In stock

7/16" x 20 UNF Stainless Steel Banjo Bolt A stainless steel 7/16" x 20 UNF banjo bolt for use with braided brake hose end fittings. The 7/16" UNF b...

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£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75
Stainless Steel 7/16x20 Banjo Bolt 25mm Length
£5.99 - £5.99
£5.99
£5.99 - £5.99
£5.99

7/16 x 20 Banjo Bolt 25mm Length

BRT Motorsport
In stock

7/16 x 20 Banjo Bolt 25mm Length 7/16 x 20 Banjo Bolt 25mm Length Stainless Steel 7/16 x 20 Banjo Bolt 25mm Length To use with -4 Banjo End

£5.99 - £5.99
£5.99
£5.99 - £5.99
£5.99
7 16" x 24 Stainless Steel UNF Banjo Bolt
£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75

7/16" x 24 UNF Banjo Bolt

BRT Motorsport
In stock

7/16" x 24 UNF Stainless Steel Banjo Bolt A stainless steel 7/16" x 24 UNF banjo bolt for use with braided brake hose end fittings and turbo oil fe...

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£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75
7 16" x 24 Stainless Steel Restricted Turbo Banjo Bolt
7 16" x 24 Stainless Steel Restricted Turbo Banjo Bolt
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90

7/16" x 24 UNF Restricted Turbo Banjo Bolt Garret Turbo

BRT Motorsport
In stock

7/16" x 24 UNF Restricted Turbo Banjo Bolt — Garrett Turbo A stainless steel 7/16" x 24 UNF restricted turbo oil feed banjo bolt, designed specific...

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£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90
M8 Stainless Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

M8 Banjo Bolt

BRT Motorsport
In stock

M8 x 1 Stainless Steel Banjo Bolt A stainless steel M8 x 1 banjo bolt for use with 8mm banjo brake hose end fittings and brake system connections. ...

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£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
M10x1 Stainless Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

M10x1 Banjo Bolt

BRT Motorsport
In stock

M10 x 1 Stainless Steel Banjo Bolt A stainless steel M10 x 1 banjo bolt for use with 10mm banjo brake hose end fittings and brake system connection...

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£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
M10x1 Stainless Steel Double Banjo Bolt
£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45

M10x1 Double Banjo Bolt

BRT Motorsport
In stock

M10 x 1 Double Banjo Bolt — Stainless Steel A stainless steel M10 x 1 double banjo bolt, designed to accept two banjo fittings on a single M10 x 1 ...

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£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45
M10 x 1.25 Stainless Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

M10x1.25 Banjo Bolt

BRT Motorsport
In stock

M10 x 1.25 Stainless Steel Banjo Bolt A stainless steel M10 x 1.25 banjo bolt for use with metric brake hose end fittings and brake system connecti...

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£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
M10 x 1.25 Stainless Steel Double Banjo Bolt
£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45

M10 x 1.25 Double Banjo Bolt

BRT Motorsport
In stock

M10 x 1.25 Double Banjo Bolt — Stainless Steel A stainless steel M10 x 1.25 double banjo bolt, designed to accept two banjo fittings on a single M1...

View full details
£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45
M10x1.5 Stainless Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

M10x1.5 Banjo Bolt

BRT Motorsport
In stock

M10 x 1.5 Stainless Steel Banjo Bolt A stainless steel M10 x 1.5 banjo bolt for use with 10mm banjo hose end fittings and brake system connections....

View full details
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
M10x1.5 Stainless Steel Restricted Turbo Banjo Bolt
M10x1.5 Stainless Steel Restricted Turbo Banjo Bolt
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90

M10x1.5 Restricted Turbo Banjo Bolt

BRT Motorsport
In stock

M10 x 1.5 Restricted Turbo Banjo Bolt — Stainless Steel A stainless steel M10 x 1.5 restricted turbo oil feed banjo bolt for use on turbochargers w...

View full details
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90
M12 x 1 Stainless Steel Banjo Bolt
£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45

M12x1 Banjo Bolt

BRT Motorsport
In stock

M12 x 1 Stainless Steel Banjo Bolt A stainless steel M12 x 1 banjo bolt for use with 12mm banjo brake hose end fittings and brake system connection...

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£2.45 - £2.45
£2.45
£2.45 - £2.45
£2.45
M12x1.25 Stainless Steel Banjo Bolt
£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75

M12 x 1.25 Banjo Bolt

BRT Motorsport
In stock

M12 x 1.25 Stainless Steel Banjo Bolt A stainless steel M12 x 1.25 banjo bolt for use with 12mm banjo brake hose end fittings and brake system conn...

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£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75
M12 x 1.25 Stainless Steel Restricted Turbo Banjo Bolt
M12 x 1.25 Stainless Steel Restricted Turbo Banjo Bolt
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90

M12 x 1.25 Restricted Turbo Banjo Bolt

BRT Motorsport
In stock

M12 x 1.25 Restricted Turbo Banjo Bolt — Stainless Steel A stainless steel M12 x 1.25 restricted turbo oil feed banjo bolt for use on turbochargers...

View full details
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90
M12 x 1.5 Stainless Steel Banjo Bolt
£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75

M12 x 1.5 Banjo Bolt

BRT Motorsport
In stock

M12 x 1.5 Stainless Steel Banjo Bolt A stainless steel M12 x 1.5 banjo bolt for use with 12mm banjo brake hose end fittings, brake system connectio...

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£2.75 - £2.75
£2.75
£2.75 - £2.75
£2.75
M12 x 1.5 Stainless Steel Restricted Turbo Banjo Bolt
M12 x 1.5 Stainless Steel Restricted Turbo Banjo Bolt
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90

M12 x 1.5 Restricted Turbo Banjo Bolt

BRT Motorsport
In stock

M12 x 1.5 Restricted Turbo Banjo Bolt — Stainless Steel A stainless steel M12 x 1.5 restricted turbo oil feed banjo bolt for use on turbochargers w...

View full details
£5.90 - £5.90
£5.90
£5.90 - £5.90
£5.90
1 8" BSP Stainless Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

1/8" BSP Banjo Bolt

BRT Motorsport
In stock

1/8" BSP Stainless Steel Banjo Bolt A stainless steel 1/8" BSP (British Standard Pipe) banjo bolt for use with BSP-threaded hydraulic and fluid lin...

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£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
M14 x 1.25 Banjo Bolt
£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95

M14x1.25 Banjo Bolt — Anodised Alloy

BRT Motorsport
In stock

M14x1.25 Banjo Bolt — Anodised AlloyA lightweight anodised alloy banjo bolt with M14x1.25 thread, designed for use with banjo fittings and adaptors...

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£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95
M14 x 1.5 Banjo Bolt
£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95

M14x1.5 Banjo Bolt — Anodised Alloy

BRT Motorsport
In stock

M14x1.5 Banjo Bolt — Anodised AlloyA lightweight anodised alloy banjo bolt with M14x1.5 thread, designed for use with banjo fittings and adaptors i...

View full details
£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95
M14x1.5 Steel Banjo Bolt
£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10

M14x1.5 Steel Banjo Bolt

BRT Motorsport
In stock

M14x1.5 Steel Banjo BoltA steel banjo bolt with M14x1.5 thread, designed for use with banjo fittings and adaptors in power steering, fuel, brake, a...

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£2.10 - £2.10
£2.10
£2.10 - £2.10
£2.10
M16 x 1.5 Banjo Bolt
£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95

M16x1.5 Banjo Bolt — Anodised Alloy

BRT Motorsport
In stock

M16x1.5 Banjo Bolt — Anodised AlloyA lightweight anodised alloy banjo bolt with M16x1.5 thread, designed for use with banjo fittings and adaptors i...

View full details
£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95
M18 x 1.5 Banjo Bolt
£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95

M18x1.5 Banjo Bolt — Anodised Alloy

BRT Motorsport
In stock

M18x1.5 Banjo Bolt — Anodised AlloyA lightweight anodised alloy banjo bolt with M18x1.5 thread, designed for use with banjo fittings and adaptors i...

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£3.95 - £3.95
£3.95
£3.95 - £3.95
£3.95
3/8 x 24 Unf Banjo Brake Light Switch
£12.95 - £12.95
£12.95
£12.95 - £12.95
£12.95

3/8 x 24 Unf Banjo Brake Light Switch

BRT Motorsport
In stock

3/8" x 24 UNF Banjo Brake Light Switch – Master Cylinder Brake Switch The 3/8" x 24 UNF banjo brake light switch is a direct replacement for the st...

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£12.95 - £12.95
£12.95
£12.95 - £12.95
£12.95
1/2"-20 UNF Banjo Bolt
£5.20 - £5.20
£5.20
£5.20 - £5.20
£5.20

1/2"-20 UNF Banjo Bolt

BRT Motorsport
In stock

1/2"-20 UNF Banjo Bolt — Zinc Plated A zinc plated 1/2"-20 UNF banjo bolt  The 1/2"-20 UNF banjo bolt is commonly used on power steering systems, a...

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£5.20 - £5.20
£5.20
£5.20 - £5.20
£5.20