M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE

Product code: THP066
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M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE
M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE
M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE
M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE
M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE
M18 (1.5TPI) Threaded Sealing Plug (Quick Fit Connector) - Yellow | HDPE
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 1 £0.21 £0.25
2 - 99 £0.21 £0.25
100 - 499 £0.19 £0.23
500 - 999 £0.17 £0.21
1000 - 4999 £0.16 £0.19
5000 + £0.14 £0.17
£0.25 / each
Quantity:


Product Specification
Thread Type Metric
Thread Size M18 x 1.5
Head Size 24.0mm
Material HDPE
Length 20.4mm
Colour Yellow

Next Day or Standard Delivery available via DHL or Royal Mail.
Order by 4pm (UK) for same day dispatch, Monday to Thursday or 2pm Friday.

Larger Order?

Call our sales team on

01233 713581


Frequently Bought Together

Total Price: £0.00

M18 x 1.5 Metric Threaded Sealing Plug | Yellow HDPE

Commonly used across engineering and manufacturing, this M18 x 1.5 metric threaded plug provides a visible seal for prepared threaded openings. The wording and fit make it suitable where teams need a yellow metric sealing plug rather than a permanent metal plug.

The threaded form allows the plug to locate securely in matching metric threads, helping reduce accidental loss during movement around busy workshops. This version combines a 20.4mm length with a 24.0mm head size, giving a clear size reference for matching against the threaded port.

Common Applications

  • Sealing threaded ports on hydraulic manifolds
  • Protecting pipework threads during storage
  • Covering BSP fittings before dispatch
  • Temporary closure during fluid system testing

M18 x 1.5 Metric Threaded Sealing Plug Dimensions

  • Thread Size: M18 x 1.5
  • Length: 20.4mm
  • Head Size: 24.0mm
  • Colour: Yellow
  • Material: HDPE
  • Thread Type: Metric

Threaded Sealing Plug Selection

Choose the thread size and thread type to match the component being sealed. BSP, UNF and Metric options suit different pipework, fine-thread and machine-thread requirements, so checking the uploaded dimensions before ordering helps avoid incorrect fitment.

View our full Threaded Sealing Plugs range.

Product Support and Trade Orders

For help checking thread size, thread type or suitability for your sealing application, speak with the Vital Parts team on 01233 713581. Our team can help with product guidance, samples where available and support for bulk or repeat trade requirements.

Please call for any enquiries!
Mon - Thurs 8.30 am - 5.30 pm
Fri 8.30 am - 3.30 pm
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