Caps, plugs and T-fittings drawn and stamped from steel sheet, shown as a customer-specific kit. The T-fitting bodies are drawn hollow before side branches are added, so the main bore stays smooth and uninterrupted – a cleaner alternative to machining from solid bar at volume.
Function and Design
A cap’s whole job is a clean, controlled close – of a tube, a port or an assembly. Drawn caps close with a formed dome or radius rather than a flat crimp, which is why they do not crack or leak the way cheap stamped closures do.
Design Highlights
- The variants come from matched tooling, so dimensions stay consistent across the set.
- Cap plug batches are first-article verified, then sampled in production.
- Every part is deburred and cleaned before it is packed.
- Material: No fixed grade – the drawing governs; stock covers steel, stainless, aluminium and brass for cap plug work.
- Process: deep drawing with in-die trim and pierce on the final station for the cap plug.
- Finish: The cap plug is finished per print – passivation, plating and coating are all run in house or by audited partners.
- Size: Final dimensions of the cap plug to your drawing; this page shows the family, your version is quoted from the print.
- Custom: Custom cap plug builds to your drawing, with small trial lots possible before committing to volume.
Where It Is Used
Production volumes of this part run in appliance and HVAC assemblies, electrical enclosures and junction boxes, battery and energy-storage components.
Factory-Direct Advantage
Blank size, lubrication and die condition are logged per run. Dimensional reports and material certs are issued with the first article.
Cap plug drawing or sample in, quotation with material options and sample lead time out.