M18 Double Flange Plug (18mm Length) | Dark Blue Silicone

Product code: DPP0006DBL
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M18 Double Flange Plug (18mm Length) | Dark Blue Silicone
M18 Double Flange Plug (18mm Length) | Dark Blue Silicone
M18 Double Flange Plug (18mm Length) | Dark Blue Silicone
M18 Double Flange Plug (18mm Length) | Dark Blue Silicone
M18 Double Flange Plug (18mm Length) | Dark Blue Silicone
M18 Double Flange Plug (18mm Length) | Dark Blue Silicone
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 99 £0.67 £0.80
100 - 249 £0.64 £0.77
250 - 499 £0.62 £0.75
500 - 999 £0.60 £0.72
1000 + £0.57 £0.68

£0.80 / each


Up to 369 units
In Stock
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Order within for same day dispatch.
369 + units
Available for production
Average production time 14 + days.
Vital Parts - Here to make bulk ordering easy.

Product Specification
Thread Size M18
Outside Diameter 17.0mm
Flange Diameter 21.0mm
Plug Length 18.0mm
Total Length 58.0mm
Colour Dark Blue

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.

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01233 713581


Frequently Bought Together

Total Price: £0.00

M18 Double Flange Plug (18.0mm Length) | Dark Blue Silicone

Made for substantial M18 threaded holes, this dark blue silicone double flange masking plug is the largest option in the uploaded range. The 17.0mm outside diameter passes through the opening and the 21.0mm flanges shield the surrounding faces, helping maintain clean threads and edges during high-temperature coating operations.

What Are Silicone Double Flange Plugs?

Large holes can be difficult to mask consistently from both sides using separate caps or tapes. This one-piece pull plug uses two integral flanges to cover each face in a single installation. The 58.0mm total length provides a generous pull section while the silicone body remains capable of withstanding process temperatures up to 315°C.

Common Applications

  • Heavy Machinery Components: Masks M18 mounting holes on large coated assemblies.
  • Infrastructure Fabrication: Protects substantial threaded openings during industrial finishing.
  • Plant Equipment Refurbishment: Keeps reusable fixing points clear while parts are recoated.
  • Large-Scale Powder Coating: Provides visible dark blue identification for the biggest listed size.

M18 Dark Blue Silicone Double Flange Plug Dimensions

  • Material: Silicone
  • Outside Diameter: 17.0mm
  • Flange Diameter: 21.0mm
  • Plug Length: 18.0mm
  • Total Length: 58.0mm
  • Thread Size: M18
  • Colour: Dark Blue

Key Benefits

  • Designed for the M18 thread size
  • 21.0mm flanges protect broad areas on both component faces
  • 58.0mm overall length is easy to grip during removal
  • Dark blue high-temperature silicone suits repeat production masking

Compare this M18 option with smaller sizes on the Silicone Double Flange Plugs category page. For help with a large threaded opening, custom masking requirement or regular supply, contact Vital Parts on 01233 713 581.

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