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MINI PC3-M4 Straight Screw-Lock Fitting - 3mm Tube OD, M4 Male
One complete MINI straight screw-lock fitting with its fitted knurled lock nut. Match tube OD, tube ID and the actual equipment thread.
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Ships from China · 5–7 calendar days preparation. Shipping · Returns

MINI PC3-M4 Straight Screw-Lock Fitting - 3mm Tube OD, M4 Male
A compact MINI screw-lock fitting joins compatible tubing to a matching female equipment thread. PC provides straight routing; PL routes the tube at a right angle. The knurled nut secures the tube over its insert.
Included in one sales unit
1 complete assembled fitting of the selected model, including its fitted lock nut. Tubing, tools, equipment ports, other fittings and boxes are not supplied.
Original PC and PL series photographs illustrate the selected construction. They are series references, not individual photographs of every selectable size. The selected model dimensions are shown separately. Application and disassembly illustrations do not add items to the sales unit.
Model & Reference Codes
| Original shipping SKU | MINI-PC3-KN-M4 |
|---|---|
| Supplier model | PC3-M4 |
| Tube outside diameter | 3 mm |
| Matching tube inside diameter | 2 mm |
| Male thread | M4 |
| Layout | PC straight |
| Connection | Knurled screw-lock nut and tube insert |
| Sales unit | 1 complete assembled MINI straight screw-lock fitting with its knurled lock nut |
| Supplier approximate overall height | 15.8 mm |
| Supplier approximate cap width | 7 mm |
Match both the tubing outside and inside diameters to the screw-lock connection. Match the actual female equipment thread and pitch as well. Supplier dimensions are approximate model references, not measured tolerances. Cap width is distinct from the equipment thread size.


Match, seat and lock.
Isolate and fully depressurize before installation or removal. Install the matching male thread using the metal flats and a sealing method suitable for the connection. Cut compatible tubing square and remove debris. Loosen the knurled nut, pass the tubing through it, seat the tubing fully on the insert and tighten the nut. Pull gently to check retention, restore air gradually and leak-check both joints. Fully depressurize before loosening the nut to remove tubing. Confirm the operating limits required by the actual system.
Pack quantities
Choose 1 / 10 / 100 identical complete fittings per pack. Quantity counts packs. Displayed pack prices include the shown savings.
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