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Sealing & Expansion Plugs

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EIS BALL EXPANSION PLUGS

  • Wide range of English / Metric sizes and materials.
  • Sizes are 0.093" - .875" / 3mm -22mm diameters.
  • Materials include Stainless steel, steel and aluminum materials.
Bolt Products’ sealing and expansion plugs are closure plugs that come in a variety of materials and are used to quickly and safely seal and close boreholes and fluid technology channels without the need for extra sealants. These plugs can be disassembled, if necessary, but they are appropriate for permanent closure and sealing. Hydraulic systems, engine building, gear construction, fixture construction, and other industrial areas are only a few of the many uses for them.

Several stock variants are available in our wide range of products:
 

EIS-11  Steel Plug  with Steel Ball                                                                                                                  METRIC     INCH     INCH SHORT

EIS-31 Stainless Steel Plug with Steel Ball                                                                                                   METRIC     INCH     INCH SHORT

EIS-33 Stainless Steel Plug with Stainless Steel Ball                                                                                  METRIC     INCH     INCH SHORT

EIS-34 Stainless Steel Plug with Stainless Steel Ball                                                                                  METRIC     INCH     INCH SHORT

EIS-53 Aluminum Steel Plug with Stainless Steel Ball                                                                               METRIC     INCH     INCH SHORT

EIS-88 316 Stainless Steel Plug with 316 Stainless Steel Ball                                                                   METRIC     INCH     INCH SHORT
 

EIS-RS RIVET EXPANSION PLUGS

Install into an as drilled hole 4mm - 10mm diameters. 
Two standard lengths.

EIS-RST PULLPLUGS

  • Patent pending* available in stainless steel, steel, and aluminum materials.

  • Quickly installs into any depth in as drilled holes.

  • Many sizes and materials are available.

EIS-B BLOCKER / TAPERED SEALING PLUGS

  • A low pressure press-in plug for as cast holes.

  • Press in and stake, special sizes and materials are available.

 

• 20 Years of Insert Experience                   • Certified ISO/TS 16949-2009                         • IATF 16949-2016 Certificate            • RoHS Compliant

Category Files
EIS Metric Series Sealing Plugs
EIS-11 Steel Plug & Ball Inch - Metric - Short
EIS-31
EIS-31 Stainless Steel Plug with Steel Ball
EIS-33 Stainless Steel Plug-Stainless Steel Ball
EIS-33 Stainless Steel Plug with Steel Ball
EIS-34 Sealing Plugs
EIS-34 Stainless Steel Plug with Steel Ball
EIS-53 Series Sealing Plugs
EIS-53 Aluminum Steel Plug with Stainless Steel Ball
EIS-88 316 SS Plug-316 SS Ball
EIS-88 316 Stainless Steel Plug & Ball
EIS-RS Rivet Plugs
Rivet Plugs - Metric RS Series
EIS-RST Pull Plugs
Pull Plugs - Metric RST series
EIS-B Blocker Plugs
EIS-B Blocker Plugs

How do Sealing and Expansion Plugs Work?

Sealing and expansion plugs operate on a simple yet ingenious principle of mechanical expansion, utilizing the combined forces of friction and pressure to secure materials firmly in place. Here's a detailed explanation of the process:

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