Hex Socket Head Male Connector KGS Stainless Steel One-Touch Fitting, KG Series.

Caution
- The minimum order quantity varies depending on the selected model. Please check the quotation / order screen for details.
- For materials and specification details, please refer to the catalog.
- Product images may be representative images. Refer to the catalog for shape details.
Product Description
SMC One-Touch fitting.
[Features]
· Stainless steel specifications for use in corrosive environments.
· SUS303 is used for metal parts.
· Suitable for use in CRT production lines where contact with copper must be avoided, as well as cleaning of food processing machines where water or salt water splashes.
· Suitable for use inside clean rooms where discoloration of copper materials and dust caused by corrosion must be avoided.
[Applications]
· The internal hex allows thread connection by using an Allen wrench for confined spaces.
Hex Socket Head Male Connector: KGS Outline Drawing And Dimensions

Hex Socket Head Male Connector: KGS outline drawing (M5)

Hex Socket Head Male Connector: KGS outline drawing (R)
| Applicable tubing outer diameter (mm) | Connection thread M R | Model | H (width across flats) | øDNote) | L | *A | M | Effective cross-sectional area (mm2) | Weight g | |
|---|---|---|---|---|---|---|---|---|---|---|
| Nylon | Urethane | |||||||||
| 4 | M5 × 0.8 | KGS04-M5 | 2.5 | 8 | 18.7 | 15.6 | 12.7 | 4 | 4 | 2.6 |
| 1/8 | KGS04-01 | 3 | 9.8 | 23 | 19 | 16 | 4.1 | 3.6 | 8 | |
| 6 | M5 × 0.8 | KGS06-M5 | 2.5 | 10 | 19.5 | 16.4 | 13.5 | 4 | 4 | 3.2 |
| 1/8 | KGS06-01 | 4 | 11.8 | 24 | 20 | 17 | 10.0 | 9.9 | 9 | |
| 1/4 | KGS06-02 | 13.8 | 18 | 10.7 | 10.0 | 15 | ||||
| 8 | 1/8 | KGS08-01 | 5 | 14 | 28 | 24 | 18.5 | 17.2 | 16.2 | 12 |
| 1/4 | KGS08-02 | 6 | 25.5 | 19.5 | 23.3 | 11 | ||||
| 3/8 | KGS08-03 | 17 | 27.5 | 21.5 | 24 | |||||
| 10 | 1/8 | KGS10-01 | 5 | 17 | 30 | 26 | 21 | 17.2 | 10.0 | 18 |
| 1/4 | KGS10-02 | 8 | 27.5 | 21.5 | 39.0 | 26.6 | 12 | |||
| 3/8 | KGS10-03 | 21 | 19 | |||||||
| 1/2 | KGS10-04 | 22 | 28 | 20 | 35 | |||||
| 12 | 1/4 | KGS12-02 | 8 | 19 | 33.5 | 27.5 | 22 | 46.0 | 44.5 | 23 |
| 3/8 | KGS12-03 | 10 | 29 | 22.5 | 60.0 | 18 | ||||
| 1/2 | KGS12-04 | 22 | 28 | 20 | 30 | |||||
* Reference dimensions of R thread after installation
Note) øD is the maximum diameter.
One-Touch Fitting Stainless Steel KG Series Common Specifications (Reference)
Structure

KG Series structure
Applicable Tubing
| Tube materials | FEP, PFA, nylon, soft nylonNote 1), polyurethane |
|---|---|
| Tube outer diameter | ø4, ø6, ø8, ø10, ø12, ø16 |
Note 1) Soft nylon tubing is not compatible with water.
Specifications
| Usable fluids | Air, waterNote 2) | |
|---|---|---|
| Operating pressure rangeNote 3) | -100 kPa to 1 MPa | |
| Proof pressure | 3 MPa | |
| Ambient and fluid temperature | -5 to 60°C, if water is used then 0 to 40°C (no freezing) | |
| Thread | Mounting section | JIS B 0203 (taper thread for piping) JIS B 0205 (metric coarse thread) |
| Nut part | JIS B 0205 (metric fine thread) | |
| Thread sealant | With sealantNote 4)Or, without sealants | |
Note 2) The surge pressure must be under the maximum operating pressure.
Note 3) Do not use the fittings with a leak tester or for vacuum retention because they are not guaranteed for zero leakage.
Note 4) Add the suffix "S" to the part number if w/ seal is desired.
Principle Part Materials
| Body | SUS303, PBT |
|---|---|
| Stud | SUS303 (thread portion) |
| Chuck | SUS304 |
| Guide | SUS304, SUS303, PBT |
| Collet, release button | POM |
| Seal, O-ring | NBR |
| Gasket | SUS304/NBR |