SIAMP Flush Rod – M8x1.25 Knurled Head Version
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Direct replacement for SIAMP flush systems (12S01/Verso 350) Design with standard M8×1.25 thread -55 mm threaded length
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Model information
- Source
- Printables
- Category
- Bathroom
- License
- Creative Commons — Attribution
This model was designed as a replacement for the SIAMP concealed toilet flush rod (tested on model 12S01 / Verso 350).
On my installation, the original M8×1.25 plastic rod had broken at the tip, reducing its effective length and making adjustment impossible.
This redesigned version keeps the same standard thread but adds a 20 mm knurled head for tool-free manual adjustment and a type-C conical tip for easier engagement in the flush lever.
The 65° diamond knurl provides excellent grip and a clean, functional appearance.
You can also notice on the photos an additional printed plate mounted on the mechanism — this part helps create a smoother pivot point for the flush action and improves the push feedback.
That plate model will also be available separately in my profile.
Printed in PLA-CF on a Flsun V400 (0.4 mm nozzle, 0.15 mm layer height, 4 perimeters, 60 % infill, vertical orientation, no supports).
The part installs directly in place of the original rod — simply screw it in by hand.
Included files: STL (ready to print).