Adjustable Toilet Seat Hinge with 75 mm Base and SS304 Components
HSA022ZS is an adjustable toilet seat hinge specified with a 75 mm base diameter and a 110–189 mm adjustment range. The hinge body and pin cover are SS304, while the fixing nut is nylon. M5, M6 and 1/4 in. thread options allow the fixing specification to be matched to the approved toilet seat and ceramic bowl design.
Check the 75 mm Base Before Approving the Hinge
The mounting area around the ceramic fixing points must accommodate the 75 mm base. Hinge-center adjustment alone is not enough to confirm compatibility; rear seat geometry, fixing holes and the seat-side connection should also be reviewed.
110–189 mm Adjustment Range
Measure the required center-to-center position after the toilet seat is correctly aligned on the bowl. The final hinge position must remain within the specified range.
HSA022ZS Technical Specifications
| Specification | HSA022ZS Details |
|---|---|
| Model No. | HSA022ZS |
| Product Name | Toilet seat hinge |
| Base Diameter | 75 mm |
| Hinge Body | SS304 |
| Pin Cover | SS304 |
| Nut | Nylon |
| Screw Thread | M5 / M6 / 1/4 in. |
| Adjustment Range | 110–189 mm |
| Salt Spray Test | NSS 180 h |
| Components | Hinge body, screws, washers and nut |
| MOQ | 5,000 sets |
| Delivery Time | 25 days |
| Working Temperature Range | -20°C to +80°C |
| Customization | Customize according to customer drawings |
HSA022ZS Material and Fixing Structure
The model uses different specified materials for the hinge components and fixing nut. Buyers should therefore approve the material specification by component rather than describing the complete hinge simply as stainless steel.
The main hinge body is specified in SS304 and should remain identified separately in the approved product specification.
The pin cover is also specified in SS304 and uses the same stated stainless-steel grade as the main hinge body.
The fixing nut is specified in nylon. Its dimensions and relationship with the selected screw thread should be confirmed before order approval.
Screws and washers are included in the listed HSA022ZS component set, but their materials are not defined in the supplied product data. Do not add a stainless-steel grade for these parts unless it is confirmed in the approved order specification.
Six Fit Checks for HSA022ZS
The 110–189 mm adjustment range offers dimensional positioning, but final compatibility depends on the complete relationship between the hinge, toilet seat, fixing hardware and ceramic bowl.
Fixing-Hole Centers
Measure the center-to-center distance between the ceramic fixing holes and check the final required hinge position against the 110–189 mm adjustment range.
75 mm Base Clearance
Confirm the available mounting area around each rear fixing point so the 75 mm hinge base can be positioned without interfering with the bowl or toilet seat.
Mounting-Hole Dimensions
Check the ceramic hole dimensions against the proposed fixing hardware and nylon nut rather than approving the hinge from center spacing alone.
Screw Thread
Select M5, M6 or 1/4 in. and approve the screw, washer and nylon nut arrangement as one complete fixing set.
Seat-Side Interface
Provide the toilet seat drawing or hinge connection dimensions so the seat-side interface can be checked before production approval.
Final Seat Alignment
Verify seat centering, rear clearance and the final hinge position after the complete fixing assembly is configured.
Do Not Treat the 110–189 mm Range as Universal Fit
Adjustment range is only one compatibility condition. The 75 mm base, ceramic fixing holes, nylon nut, selected thread and seat-side interface must all match the intended toilet seat assembly.
HSA022ZS Specification Approval Workflow
Measure
Record fixing-hole centers, ceramic mounting-hole dimensions and available rear mounting space.
Match
Check the required hinge position against the 110–189 mm range and verify clearance for the 75 mm base.
Configure
Select M5, M6 or 1/4 in. thread and confirm the screw, washer and nylon nut configuration.
Approve
Verify the complete assembly against the toilet seat drawing before releasing the specification for bulk production.
Test, Temperature and Supply Specifications
HSA022ZS has defined test, working-temperature, minimum-order and delivery specifications for purchasing reference after the final fixing configuration is approved.
NSS identifies the specified neutral salt spray test duration. If your purchasing specification includes a separate corrosion, appearance, cleaning-chemical or market-specific acceptance requirement, define that criterion before production approval.
OEM HSA022ZS Customization from Customer Drawings
We can customize HSA022ZS according to customer drawings. For a model-specific toilet seat or private-label program, provide controlled seat and bowl dimensions so the hinge and fixing configuration can be reviewed before the order is released.
- Toilet seat drawing and ceramic bowl drawing
- Center-to-center distance between fixing holes
- Ceramic mounting-hole dimensions
- Available space for the 75 mm hinge base
- Required M5, M6 or 1/4 in. screw thread
- Seat-side hinge connection dimensions
- Required quantity and destination country
- OEM drawing revisions and packaging requirements
Related Toilet Seat Hinge and Matching Resources
HSA022ZS Toilet Seat Hinge FAQ
HSA022ZS has a specified base diameter of 75 mm. Confirm the available mounting area around the ceramic fixing points before approving the hinge.
The supplied HSA022ZS specification identifies the hinge body and pin cover as SS304 and the nut as nylon.
The specified adjustment range is 110–189 mm. The final hinge position should stay within this range after the toilet seat is correctly aligned on the ceramic bowl.
The listed thread options are M5, M6 and 1/4 in. Confirm the required thread together with the screw, washer and nylon nut arrangement.
No. Compatibility also depends on clearance for the 75 mm base, ceramic mounting-hole dimensions, fixing hardware, nylon nut and the seat-side hinge interface.
The supplied product data lists an NSS neutral salt spray test duration of 180 hours. Any separate project acceptance criterion should be defined before production approval.
Yes. The HSA022ZS product data specifies customization according to customer drawings. Send the seat and bowl dimensions, fixing specification, quantity and packaging requirements for review.
The supplied specification lists an MOQ of 5,000 sets and a delivery time of 25 days. Final order details should be confirmed together with the approved product specification.
Send Your HSA022ZS Dimensions for Hinge Matching
Please include the fixing-hole centers, ceramic mounting-hole dimensions, available clearance for the 75 mm base, required M5, M6 or 1/4 in. thread, toilet seat drawing, quantity, destination country, and any OEM or packaging requirements.
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