Best current price£3.09from The Range
Shopping.co.uk recommended and popular offers
The Range£3.09Visit shop Thomas Dudley Top Hat Washer 1/2" - Pwatap370293 - Perfect For Plumbing - Neutral
Visit shop5 offers from £3.09 - £3.51
View price history by clicking the chart icon.
The Thomas Dudley Top Hat Washer 1/2 inch is an essential plumbing component designed for homeowners and professional tradespeople who need a secure, leak-proof seal for sink tap installations. This durable washer provides a snug and centralized fit, ensuring that sink fixtures remain stable and watertight. While highly effective, users must note that plumbing sizing can be confusing; despite being classified as a 1/2 inch BSP thread washer, the physical diameter measures 3/4 inch, meaning it is not suitable for actual 1/2 inch diameter tap threads.
| Model Part Number | Pwatap370293 |
|---|---|
| Brand | Thomas Dudley |
No. While it is marketed for 1/2 inch BSP thread, it measures 3/4 inch in diameter. Use the 1/4 inch version for actual 1/2 inch tap threads.
The tap insertion hole has a diameter of 21mm.
The washer measures 50mm across the square.
Yes, it is specifically designed to create a watertight seal between the tap and the sink surface.
Yes, provided the dimensions of your sink hole and tap shank are compatible with the specifications of this washer.
Ensure the washer is seated centrally and is not pinched or folded within the mounting hole.
Verify that the nut underneath the sink is tightened sufficiently and that the washer is not damaged or cracked.
Double-check your tap diameter. If your tap thread is 1/2 inch, you have purchased the wrong size; you require the 1/4 inch version.
Installation involves sliding the washer onto the tap shank before inserting the shank into the sink hole. Ensure the flat surface sits against the sink base for optimal performance. Regarding compatibility, always verify your measurements: this unit requires a sink hole compatible with a 42mm body and a tap shank that accommodates a 21mm insertion hole. Note the crucial distinction between BSP thread sizing and physical diameter: this is a 1/2 inch BSP thread washer, but it measures 3/4 inch across. If your tap thread is physically 1/2 inch in diameter, you will need the 1/4 inch variant of this product. Keep the area clean and free of debris during installation to ensure a perfect seal.
