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Stem Adapter
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- stem adapter
- Parts and Accessories Type:
- Adapter
- Department:
- Plumbing
TOTO THP4034 – Frequently Asked Questions
1) Is TOTO THP4034 a complete valve or just the hardware?
Just the hardware. THP4034 covers the screw and washer for the stem adapter, so it will not replace a cartridge, stem, or valve body. If the stem itself is worn or the valve is leaking, you need the stem or cartridge part for that specific TOTO trim, not this fastener kit.
2) What is TOTO THP4034 and what does it do?
THP4034 is a TOTO repair part kit consisting of a pan head screw and washer that serves as the stem adapter hardware on TOTO bath and washroom fittings. It is the small fastener set used to secure the handle or stem component, ordered by the TOTO part number THP4034 rather than by faucet model.
3) Can I substitute a generic hardware store screw for the TOTO THP4034?
Not advisable on a plumbing trim. THP4034 is supplied as a matched screw and washer for the stem adapter, so the length, thread, and washer thickness are set by TOTO for that assembly. A generic fastener of the wrong length can bottom out or fail to seat the handle, and a mismatched washer changes how the stem is clamped. Order it by the TOTO number.
How fast can I get the TOTO THP4034 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO THP4034 come with a warranty?
Absolutely. The TOTO THP4034 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO THP4034?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the TOTO THP4034 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.