Tube Nut

Tube Nut

KST tube nuts are used in all types of automotive hydraulic lines, including brake fuel, oil, and transmission systems. They are to work with either SAE Inverted Double Flare (U.S and Japanese vehicles) or ISO Bubble Flare (European and British vehicles).

Standard

Metric

SAE

Size

Metric Thread M10x1, M10x1.25, M10X1.5, M12x1, M12x1.5, M14x1, M14x1.5, M16x1.5, M18x1.5, M20x1.5, M8x1.25 etc.

Imperial Thread 3/8-24, 3/8-20, 7/16-24, 7/16-20, 5/18, 1/2-20, etc.

Standard

Thread

Flare

Tube Diameter

Imperial

1/2-20

Inverted

1/4''

Imperial

1/2-20

Inverted

3/16''

Imperial

1/2-20

Inverted

5/16''

Imperial

3/8-24

Bubble

3/16''

Imperial

3/8-24

Inverted

3/16''

Imperial

5/8-18

Inverted

3/8''

Imperial

7/16-24

Inverted

1/4''

Imperial

7/16-24

Inverted

3/16''

Imperial

9/16-18

Inverted

1/4''

Imperial

9/16-18

Inverted

3/16''

Metric

M10x1.0

Bubble

3/16''

Metric

M10x1.0

Inverted

3/16''

Metric

M11x1.5

Inverted

3/16''

Metric

M12x1.0

Inverted

3/16''

Metric

M12x1.0

Bubble

6mm

Metric

M12x1.5

Bubble

6mm

Metric

M13x1.5

Inverted

3/16''

Metric

M14x1.5

Bubble

6mm

The sizes must be selected correctly to match the end form of the tube or port to ensure a proper seal. 

Material

Steel: 12L14, 230Mo7pb, Q215,

Brass:  62#, CuZn40, C27400,

Stainless steel: 304

Plating

Zn-Ni alloy

Chrome 3+, White, Yellow, Black, Green

Excellent Features

Effective and attractive prices

Steady raw material suppliers and assembly production process

All Quality Control original documents archive are kept over two years for tracking

A wide range of tube diameters and pipe sizes available

Application

For all vehicles with hydraulic brake system including drum brake and disc brake conversion.

Car, Electric car, Pick up, SUV, Van, Light truck, Middle bus, Boat Trailer, Multi-purpose passenger vehicle (MPV), Light commercial vehicle (LCV), Golf cart, Recreational vehicle, Burden carrier, Tow tractor, Electric tram and cart, Off-road, Racing car, Hot rod, Motorsport, Tuning car, Modified car, Motorcycle, Scooter, ATV, UTV, Three wheeler, Antique car, Vintage car, Classic car etc

Attention

Place nut over the tubing with the threaded end pointed towards the end to be flared. The tube flare will be clamped between the nut and the flare seat when tightened.

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