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A dedicated one-touch fitting for connecting male threads and tubing through a panel.
[Features]
· A compact and lightweight type with improved tube insertion/removal.
· The chuck grips the workpiece securely, increasing the tube holding force.
· Requires little force when removing, preventing the chuck from biting too deeply into the tubing.
· [See here for catalog] / Dimensional outline drawing: pp. 24, 45, 54, 62, 128, 154, 162, 171.
· Ideal for connecting male threads and tubing through a panel, etc.
· Can be used with nylon, urethane, etc.
Part Number
Configured Part Number is shown.

Bulkhead Connector KQ2E dimensional drawing, Release button shape: circular
| Applicable tube outer diameter (mm) | Connection thread Rc | Model | T (M) | H1 (width across flats) | H2 (width across flats) | L1 | L2 | Mounting hole | M | Effective area (mm2) | Minimum hole diameter | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nylon | Urethane | ||||||||||||
| ø3.2 | 1/4 | KQ2E23-02□ | M12 × 1 | 17 | 14 | 28.7 | 14.3 | 13 | 13.3 | 3.4 | 2.9 | 2.5 | 31.2 |
| ø4 | 1/8 | KQ2E04-01□ | M12 × 1 | 14 | 14 | 24.4 | 10 | 13 | 13.3 | 5.6 | 4 | 3 | 21.2 |
| 1/4 | KQ2E04-02□ | M12 × 1 | 17 | 14 | 29 | 14.6 | 13 | 13.3 | 5.6 | 4 | 3 | 30.9 | |
| ø6 | 1/8 | KQ2E06-01□ | M14 × 1 | 17 | 17 | 23.6 | 9.2 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 28.9 |
| 1/4 | KQ2E06-02□ | M14 × 1 | 17 | 17 | 28.4 | 14 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 32.4 | |
| 3/8 | KQ2E06-03□ | M14 × 1 | 19 | 17 | 30.7 | 16.3 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 35.9 | |
| ø8 | 1/8 | KQ2E08-01□ | M16 × 1 | 17 | 19 | 24.1 | 6.7 | 17 | 14.2 | 26.1 | 18 | 6 | 30.5 |
| 1/4 | KQ2E08-02□ | M16 × 1 | 17 | 19 | 28.4 | 11 | 17 | 14.2 | 26.1 | 18 | 6 | 33.1 | |
| 3/8 | KQ2E08-03□ | M16 × 1 | 19 | 19 | 31.7 | 14.3 | 17 | 14.2 | 26.1 | 18 | 6 | 37.4 | |
| ø10 | 1/4 | KQ2E10-02□ | M20 × 1 | 22 | 24 | 29.3 | 9.9 | 21 | 15.6 | 41.5 | 29.5 | 7.5 | 63.8 |
| 3/8 | KQ2E10-03□ | M20 × 1 | 22 | 24 | 31.4 | 12 | 21 | 15.6 | 41.5 | 29.5 | 7.5 | 71.6 | |
| ø12 | 3/8 | KQ2E12-03□ | M22 × 1 | 24 | 27 | 32.3 | 11.9 | 23 | 17 | 58.3 | 46.1 | 9 | 69.3 |
| 1/2 | KQ2E12-04□ | M22 × 1 | 24 | 27 | 37.7 | 17.3 | 23 | 17 | 58.3 | 46.1 | 9 | 72.7 | |
| ø16 | 3/8 | KQ2E16-03□ | M28 × 1.5 | 30 | 32 | 34.4 | 11.5 | 29 | 20.6 | 96 | 67 | 13 | 122.2 |
| 1/2 | KQ2E16-04□ | M28 × 1.5 | 30 | 32 | 38.8 | 15.9 | 29 | 20.6 | 113 | 67 | 13 | 132.1 | |

Release button shape: oval
| Applicable tube outer diameter (mm) | Connection thread Rc | Model | T (M) | H1 (width across flats) | H2 (width across flats) | L1 | L2 | Release Button Dimensions | Mounting hole | M | Effective area (mm2) | Minimum hole diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X | Y | Nylon | Urethane | ||||||||||||
| ø3.2 | 1/4 | KQ2E23-02□1 | M12 × 1 | 17 | 14 | 28.7 | 14.3 | 6.7 | 9.5 | 13 | 13.3 | 3.4 | 2.9 | 2.5 | 31.2 |
| ø4 | 1/8 | KQ2E04-01□1 | M12 × 1 | 14 | 14 | 24.4 | 10 | 7.7 | 10 | 13 | 13.3 | 5.6 | 4 | 3 | 21.2 |
| 1/4 | KQ2E04-02□1 | M12 × 1 | 17 | 14 | 29 | 14.6 | 7.7 | 10 | 13 | 13.3 | 5.6 | 4 | 3 | 30.9 | |
| ø6 | 1/8 | KQ2E06-01□1 | M14 × 1 | 17 | 17 | 23.6 | 9.2 | 9.7 | 12 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 28.9 |
| 1/4 | KQ2E06-02□1 | M14 × 1 | 17 | 17 | 28.4 | 14 | 9.7 | 12 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 32.4 | |
| 3/8 | KQ2E06-03□1 | M14 × 1 | 19 | 17 | 30.7 | 16.3 | 9.7 | 12 | 15 | 13.3 | 13.1 | 10.4 | 4.5 | 35.9 | |

Release button shape: circular
| Applicable tube outer diameter (inches) | Connection thread NPT | Model | T (UNF) | H1 (width across flats) | H2 (width across flats) | L1 | L2 | Mounting hole | M | Effective area (mm2) | Minimum hole diameter | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nylon | Urethane | ||||||||||||
| ø1/8 | 1/4 | KQ2E01-35□ | 1/2-20 UNF | 17.46 | 17.46 | 28.7 | 13.3 | 13.5 | 13.3 | 3.4 | 2.9 | 2.5 | 33.3 |
| ø5/32 | 1/4 | KQ2E03-35□ | 1/2-20 UNF | 17.46 | 17.46 | 29 | 13.6 | 13.5 | 13.3 | 5.6 | 4 | 3 | 33.3 |
| ø3/16 | 1/8 | KQ2E05-34□ | 9/16-18 UNF | 17.46 | 17.46 | 25.6 | 9.2 | 15 | 13.3 | 7.8 | 6.5 | 3.5 | 36.6 |
| ø1/4 | 1/4 | KQ2E07-35□ | 9/16-18 UNF | 17.46 | 17.46 | 29.9 | 13.5 | 15 | 13.3 | 13.5 | 11.5 | 4.6 | 38.8 |
| ø5/16 | 3/8 | KQ2E09-36□ | 3/4-16 UNF | 22.23 | 22.23 | 31 | 13.6 | 20 | 14.2 | 26.1 | 18 | 6 | 61.8 |
| ø3/8 | 3/8 | KQ2E11-36□ | 7/8-14 UNF | 25.4 | 25.4 | 31.4 | 12 | 23 | 15.6 | 35.3 | 29.1 | 7 | 83.8 |
| ø1/2 | 3/8 | KQ2E13-36□ | 1-12 UNF | 28.57 | 28.57 | 32 | 11.6 | 26 | 17 | 66 | 51.7 | 9.6 | 106.6 |
| 1/2 | KQ2E13-37□ | 1-12 UNF | 28.57 | 28.57 | 36.1 | 15.7 | 26 | 17 | 66 | 51.7 | 9.6 | 114.3 | |

Release button shape: oval
| Applicable tube outer diameter (inches) | Connection thread NPT | Model | T (UNF) | H1 (width across flats) | H2 (width across flats) | L1 | L2 | Release Button Dimensions | Mounting hole | M | Effective area (mm2) | Minimum hole diameter | Weight g | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| X | Y | Nylon | Urethane | ||||||||||||
| ø1/8 | 1/4 | KQ2E01-35□1 | 1/2-20 UNF | 17.46 | 17.46 | 28.7 | 13.3 | 6.7 | 9.5 | 13.5 | 13.3 | 3.4 | 2.9 | 2.5 | 33.3 |
| ø5/32 | 1/4 | KQ2E03-35□1 | 1/2-20 UNF | 17.46 | 17.46 | 29 | 13.6 | 7.7 | 10 | 13.5 | 13.3 | 5.6 | 4 | 3 | 33.3 |
| ø3/16 | 1/8 | KQ2E05-34□1 | 9/16-18 UNF | 17.46 | 17.46 | 25.6 | 9.2 | 8.4 | 11 | 15 | 13.3 | 7.8 | 6.5 | 3.5 | 36.6 |
*See the manufacturer's catalog for types and model numbers other than the above
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Body Material | Thread Material | Application | Applicable Tube O.D.1 (φ) | Types of connection | Connection screw | Number of Connection Tubes (piece) | Color | Release button shape | Release button color | Custom-made specifications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 30.70 | 5 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 10 | Rc | 1/4 | 1 | White | Perfect circle | Light Gray | N/A | ||
- | 10 Piece(s) | Quote | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 10 | Rc | 1/4 | 1 | White | Perfect circle | White | Lubricant: white petroleum jelly, release bushing color change | ||
MYR 28.20 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 10 | Rc | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 31.10 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 10 | Rc | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 34.50 | 5 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 10 | G | 1/4 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 50.77 | 1 Piece(s) | 21 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 10 | G | 1/4 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 34.90 | 5 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 10 | G | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 44.50 | 5 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 10 | G | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 32.40 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 3/8 | Rc | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
- | 1 Piece(s) | Quote | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 3/8 | Rc | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 42.10 | 10 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 3/8 | NPT | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 44.90 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 3/8 | NPT | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 33.80 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 12 | Rc | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 37.95 | 5 Piece(s) | 5 Day(s) or more | [SUS303, SUS304] SUS303, SUS304 | [Standard (Brass)] Brass | Standard/Mini | - | - | - | - | - | - | - | - | ||
MYR 38.00 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 12 | Rc | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 35.20 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 12 | Rc | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
- | 5 Piece(s) | Quote | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 12 | Rc | 1/2 | 1 | White | Perfect circle | White | Lubricant: white petroleum jelly, release bushing color change | ||
MYR 42.45 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 12 | Rc | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 40.60 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 12 | G | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 52.64 | 5 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 12 | G | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 48.50 | 5 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 12 | G | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 47.26 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 12 | G | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 40.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 1/2 | Rc | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 51.82 | 10 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 1/2 | Rc | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 41.00 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 1/2 | Rc | 1/2 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 52.69 | 10 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 1/2 | Rc | 1/2 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 50.50 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 1/2 | NPT | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 54.10 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 1/2 | NPT | 3/8 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 73.70 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 1/2 | NPT | 1/2 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 55.20 | 10 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 1/2 | NPT | 1/2 | 1 | White | Perfect circle | Orange | N/A | ||
MYR 96.87 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 16 | Rc | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 89.49 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 16 | Rc | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 82.40 | 5 Piece(s) | 3 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 16 | Rc | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 89.81 | 5 Piece(s) | 5 Day(s) or more | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 16 | Rc | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
- | 1 Piece(s) | Quote | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 16 | G | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 134.65 | 5 Piece(s) | 21 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 16 | G | 3/8 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 103.12 | 5 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 16 | G | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 94.50 | 5 Piece(s) | 43 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 16 | G | 1/2 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 30.50 | 10 Piece(s) | 10 Day(s) or more | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 3.2 | Rc | 1/4 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 37.08 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass | [Standard (Brass)] Brass | Standard/Mini | 3.2 | Rc | 1/4 | 1 | White | Ellipse | Light Gray | N/A | ||
- | 10 Piece(s) | Quote | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 3.2 | Rc | 1/4 | 1 | White | Perfect circle | Light Gray | N/A | ||
MYR 40.18 | 10 Piece(s) | 21 Day(s) | [Brass] PBT + Brass (Electroless nickel plating) | [Standard (Brass)] Brass (Electroless nickel plating) | Standard/Mini | 3.2 | Rc | 1/4 | 1 | White | Ellipse | Light Gray | N/A |
Loading...
| Fitting Type | Screw Mount Direction | Applicable Fluid | Water / Air | Screw Mounting, Direction | Bulkhead Female Union |
|---|---|---|---|---|---|
| Types | Single-Action / Screw | Packing, Material of O-Ring | NBR | Operating Temperature(°C) | -5::60 |
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