Injection-Moulded Seals & O-Rings
Injection-moulded seals, gaskets and O-rings in elastomers and engineering plastics, produced in the colour and hardness specified.
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Plastic & Injection Parts
Injection-Moulded Threaded Fittings
Injection-moulded threaded fittings and hose connectors, with threads moulded to the specified standard and seal detail.
| Part weight | 1 g – 15 kg |
|---|---|
| Mould life | Typically 200 000 – 500 000 shots per tool, by material and geometry |
| Dimensional | ±0.2 mm general, shrinkage compensated into the tool |
About this part
What it is and why it is made that way
Moulded threads are formed in the tool and are consistent across the whole batch, which is what keeps a repeated assembly from leaking as the fitting wears in. This line covers threaded connectors, hose tails and unions in ABS and PVC-U, with the thread form, seal face and tightening torque all specified.
- Threads moulded in the tool — identical across the batch
- Metric, BSPP and NPT forms available
- O-ring, flat or tapered seal detail, to specification
- Batched by thread size and seal type for kitting
Materials
- ABS and ABS/PC
- Nylon PA6 / PA66
- POM (acetal)
- PP and PE
- PVC-U
- Silicone and TPE
Production processes
- Injection moulding
- Overmoulding
- Insert moulding
- Compression moulding
- Silicone moulding
- Two-shot moulding
Typical applications
- Threaded fluid connections
- Hose and tube fittings
- Instrument connections
- Panel and bulkhead entries
Specification
Technical detail
The ranges below are what this shop typically holds. Anything tighter than the baseline is possible — send the drawing and we will confirm it against your specific tolerances rather than quote from a table.
| Part weight | 1 g – 15 kg |
|---|---|
| Mould life | Typically 200 000 – 500 000 shots per tool, by material and geometry |
| Dimensional | ±0.2 mm general, shrinkage compensated into the tool |
| Colour | Natural, black, white or custom Pantone — minimum order quantity applies |
| Tooling | Aluminium or steel mould; T1 lead time quoted per project |
| Thread form | Metric BSPP, NPT, or as specified |
| Seal detail | O-ring, flat face or tapered |
| Wrench flat | Moulded-in flats to the specified size |
Material and finish are yours to choose. The lists above are the families this part is normally made in. We will not substitute a grade or change a tolerance without telling you first — and asking.
In the same process line
Other Plastic Parts parts
If this is not quite your part, these are made on the same equipment with the same inspection.
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Flat gaskets and moulded sealing rings cut or moulded to the flange geometry, with the bore and outer diameter held to drawing.
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Rubber Bellows & Suction Boots
Moulded rubber bellows and suction boots that protect a moving joint from dust, coolant and impact.
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Get a quote for this part
Send the drawing and we will quote it against your material, your tolerance and your quantity. One business day, in writing, with a lead time you can plan around.