Toto spares, Toto parts, Toto spare parts, Spare code no : TZH71 - Invisible Fixing Kit.ere’s what I...

Toto spares, Toto parts, Toto spare parts, Spare code no : TZH71 - Invisible Fixing Kit.

ere’s what I found out about TOTO spare TZH71 – Invisible Fixing Kit, plus what it is used for, what it contains, and what you need to check when using it. If you like, I can try to find exact dimensions (for India) so you can verify compatibility.

What is TZH71 – Invisible Fixing Kit

• It is a fixing kit used with certain wall‑hung toilets made by TOTO. It is referred to as “Invisible Fixing Kit” meaning the bolts / fixings are concealed / hidden (not visible once toilet is mounted).
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• The TOTO Indonesia site lists TZH71 under “supplementary parts / parts”. It seems to be discontinued in that listing.
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• It is included in the description of some TOTO wall‑hung WC models, e.g. “CW800JW/F” “CW822″ etc. These model descriptions often say “with Invisible Fixing Kit (TZH71)”.

What It Does / Uses

The purpose of the TZH71 Invisible Fixing Kit is to mount a wall‑hung toilet bowl to the wall/structure in a clean, aesthetically pleasing way, hiding the mounting hardware so it looks neat. Key uses:

1. Mounting the WC bowl securely to a concealed frame or wall frame
2. Wall‑hung toilets need a strong bracket or carrier inside the wall or frame that holds the weight. The fixing kit consists of bolts, rods, bracket parts etc that attach the bowl to that frame/wall.
3. Invisible / Hidden bolts
4. After installation, you should not see the fixing bolts (or very minimal appearance), since the kit is designed so that the fasteners are concealed behind or within the bowl and wall. This improves aesthetics and makes cleaning easier.
5. Ensuring alignment and stability
6. The fixing kit ensures the bowl is aligned properly (level, plumb) and stable (no wobble) because it's properly anchored. Adequate strength is needed since it holds entire bowl, water plus usage loads.
7. Compatibility with specific TOTO wall‑hung toilet bowls
8. Only works with bowls designed for hidden/invisible fixings TOTO‑designed frames / carriers that accept TZH71 hardware. Some bowl designs have visible bolt holes; the invisible kit works only if design accommodates hiding.

What It Likely Contains / Components

While I did not find a public parts drawing listing all pieces of TZH71, based on similar invisible fixing kits, it likely includes:

• Fixing bolts / threaded rods (stainless steel or treated metal) that go through bowl brackets into wall frame.
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• Bolt‑covers / trim caps to hide bolt heads or washers from outside (once bowl is mounted) or internal covers.
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• Mounting brackets or support plate that interface between bowl and wall/frame.
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• Spacers, washers, nuts, special anchors if needed for wall structure.
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• Possibly shims or leveling pads so bowl can be leveled precisely before the bolts are fully tightened.

What to Check / Consider When Using TZH71

If you’re installing or replacing with TZH71, make sure:

1. Compatibility of the bowl
2. The bowl model must support invisible fixings and the fixing holes must match those provided by TZH71 (bolt spacing, bracket shapes). Bowls designed for visible bolts may not have the interior geometry to hide bolts.
3. Wall Carrier / Frame Strength
4. The wall must have a proper carrier (frame) designed for wall hung toilets, capable of supporting bowl + user + water. Fixing kits themselves are part of that, but only as good as the structure they anchor into.
5. Depth & Wall Thickness / Tile Thickness
6. Since bolts are concealed, the depth behind the wall and tile / finishing thickness can affect how far bolts project, and whether covers sit flush. If wall finish (tile, plaster etc) is thick, there needs to be adjustment.
7. Leveling & Alignment Before Tightening
8. During install, bowl must be leveled; fixings should allow adjustment so the visible front edge is aligned, bowl is plumb. Once fixings are fully tightened, little room for adjustment may remain.
9. Seal between bowl and wall
10. Because the bowl’s back must often flush against wall, sealing or gasket between bowl backside and wall is important to prevent moisture ingress. Invisible fixing shouldn’t create a gap that can collect dirt / moisture.
11. Maintenance / Access
12. Even invisible fixings sometimes need maintenance (tightening, cleaning). Make sure you can access all parts (bolt covers etc) in case of loosening over time.
13. Torque / Tightening Specifications
14. Fixings must be tightened enough to be secure, but over‑torquing can crack porcelain ceramic. Use correct nuts / washers; tighten gradually, alternating sides if multiple bolts to avoid stress.
15. Corrosion Resistance
16. Since these parts are partly hidden, they should be made of corrosion‑resistant materials (stainless steel, plated bolts, etc.), especially in humid bathroom environment.

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