Stainless stepped tube pins – drawn tube reduced to solid steps by swaging or grounding regions, giving a tube that locates in one bore and guides in another. Steps are gauged; transitions are radiused to avoid stress points.
Function and Design
The stepped tube pin is judged by the dimension nobody checks until a failure – fit, seal or concentricity. The stepped tube pin is produced to print, with the features that carry function inspected first.
What Makes It Work
- A stepped tube pin carries one job in the assembly, and every tolerance on it exists to protect that job. Stepped tube pin repeatability is designed in through dedicated tooling and recorded settings.
- No plating to scratch: stainless handles washdown, humidity and process media directly.
- Consistency comes from a verified first article and sampling through the run.
- Material: Standard stock covers stainless steel (304 / 316); equivalents are feasibility-checked against your print before quoting.
- Process: tube drawing and turning for the stepped tube pin, wall held to the agreed band, stepped diameters held across operations.
- Finish: For the stepped tube pin, surface is natural as standard; zinc, nickel, chrome and e-coat are quoted to the print.
- Size: Quoted from your print, so the stepped tube pin size you approve is the size that repeats.
- Custom: OEM/ODM to print: the stepped tube pin quotation includes material advice and tooling cost.
Where It Is Used
In service you will find this part in automotive sensor stems, instrument capillary lines, medical and food-grade devices.
Why Source It From Aunov
Stepped tube pin work is unforgiving: a few hundredths in the wrong place and the assembly will not go together. Tolerances that matter are confirmed with capability data before the stepped tube pin is quoted.
OEM pricing and free stepped tube pin samples on request, with manufacturability checked first.