Product Announcement from Sealcon LLC

DOME & HEX PLUGS - Nylon & Nickel Plated Brass-Image

These Hole Plugs, Hex Plugs and Dome Plugs are designed to fit and seal unused knock-out holes. Providing a liquid tight seal of NEMA 4x & 6 (O-Ring Required for NEMA 6 Rating). ATEX, Ex Hole Plugs, Hex Plugs and Dome Plugs are also available for Hazardous Duty Locations.

Materials: Nylon, Nickel Plated Brass & Stainless Steel, Polystyrene Plugs available by request.

Threads: PG 7 - PG 48, NPT 3/8" - NPT 1 ½", & M12 - M63

Optional O-Rings:

  • Buna-N (-B) - Operating Temperature: -40°F to 212°F (-40°C to 100°C)
  • Viton® (-V) - Operating Temperature: -40°F to 392°F (-40°C to 200°C)

Dealing with foreign products? Is connecting a challenge? We carry a large assortment of Adapters, Reducers and Enlargers. Sealcon is your Solution house for NPT, Metric & PG Threads. We provide an inexpensive and simple solution to alter the thread size on any threaded connector. Materials: Nylon, Nickel Plated Brass, Aluminum and Stainless Steel

Sealcon also offers a huge variety of Liquid Tight Strain Relief, Cable Glands, Cord Grips, Circular Connectors, Industrial Enclosures, Conduit Systems and Cable Accessories. Most of our standard products are also available in EEx-e and ATEX versions for hazardous duty locations.

With our wide array of offered products, you can get everything you need all under one roof!


  • 2D/3D CAD
  • Quantity Discounts
  • No Minimum Orders
  • Same Day Shipping
  • Blanket Orders
  • Quick and Friendly Service
  • All Major Credit Cards
  • Call for your FREE Sample today

Let us help you spec in your application! Call us at 800-456-9012 / 303-699-1135 or visit our website. Sample your application today!

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