White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer
White Solid Silicone Rubber Hole Plug | Round Cap 2.7–14mm | HomeDIYer
White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer
White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer
White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer
White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer
White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer
Roll over image to zoom in Click on image to zoom
White Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYerWhite Solid Silicone Rubber Hole Plug | Round Cap 2.7–14mm | HomeDIYerWhite Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYerWhite Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYerWhite Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYerWhite Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYerWhite Hole Plug End Cap Round Solid Silicone Rubber Blanking Seal Bung 3mm - 14mm - HomeDIYer

White Solid Silicone Rubber Hole Plug | Round End Cap 2.7–14mm

HomeDIYer
No reviews

By HomeDIYer®

Diameter: A=2.7mm
Price:
$2.21 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact BLIK Diners Club Discover EPS Google Pay iDEAL Wero JCB Maestro Mastercard Multibanco MobilePay PayPal Przelewy24 Shop Pay Twint Union Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Limited Offer — Spend More, Save More
Spend $55+
Save $5
Spend $100+
Save $10
Spend $200+
Save $25
✅ Discount applied automatically at checkout 🚚 Free shipping on orders over $89
HomeDIYer DIY Expert Support

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri  8:30 AM – 8:00 PM
WhatsApp
24-Hour Fast Ship
Arrives in 3–14 Days
Worldwide Shipping
30-Day Returns
1 tree planted with every purchase

Description

White Solid Silicone Rubber Hole Plug — Round Press-Fit End Cap for Small Holes, 2.7–14 mm

Small holes in panels, pipes, and equipment housings need a plug that fills the opening completely, holds its position under vibration and pressure, and resists the chemicals and temperatures of the surrounding environment. This solid silicone rubber hole plug is a round, solid-body cap that presses directly into the hole—no flange, no tools, no adhesive required.

Made from high-quality silicone rubber, the plug is rated to 250°C and resists corrosion, acids, alkalis, and liquid and gas ingress. Available in 25 fine-increment sizes from 2.7 mm to 14 mm (dimension A—the plug body diameter), with 0.3–0.5 mm steps between sizes for precise hole matching. Color: white. Metric sizing.

Size selection tip: Select a plug size that matches or is very slightly larger than your hole diameter. The solid silicone body compresses to grip the hole wall—a plug that is too small will not seal; one that is too large may be difficult to insert. When in doubt, size up by one increment.

✅ Fits round holes from 2.7 mm to 14 mm (dimension A) — solid round press-fit body — suitable for metal, plastic, and other panel and pipe materials

✅ Key Features of This White Solid Silicone Rubber Hole Plug

  • 🧲 Solid Silicone Rubber Body: Fully solid round plug—no hollow center or cable pass-through. Fills the hole completely for a clean, flush seal on the surface side with no gap or void inside the opening.
  • 🌡️ High Temperature Resistance up to 250°C: Silicone rubber maintains its shape and sealing performance at temperatures up to 250°C—suitable for use near heat sources, in engine bays, and during high-temperature spray masking processes.
  • 💧 Liquid, Gas & Dust Seal: Solid body and compression fit prevent liquid, gas, dust, and water vapor from passing through the sealed hole—suitable for equipment dustproofing, pipe end sealing, and panel hole blanking.
  • 🧪 Corrosion & Acid Resistant: Silicone resists corrosion, acids, alkalis, and special media—suitable for use in chemical processing, laboratory, and industrial environments where standard rubber plugs would degrade.
  • 📐 25 Fine-Increment Sizes (2.7–14 mm): Sizes step in 0.3–0.5 mm increments—covers a wide range of small hole diameters with enough granularity to find a precise fit for most standard metric hole sizes.
  • 🔧 Tool-Free Press-Fit Installation: Push the plug into the hole by hand until it seats flush. Can be adjusted with tools for a tighter fit if needed. Removable and reusable.

🎯 Who Is This For?

🏭 Equipment & Panel Hole Dustproofing

Blank unused small holes in equipment housings, control panels, and machine enclosures—the solid silicone body prevents dust, debris, and moisture from entering through open holes that are no longer in use.

🚗 Automotive & High-Temperature Applications

Seal small holes in automotive panels, firewall pass-throughs, and components near heat sources—the 250°C temperature rating handles engine bay and spray masking environments without degrading.

🧪 Chemical & Laboratory Use

Plug small openings in laboratory equipment, chemical pipelines, and processing vessels—the acid and corrosion resistance of silicone rubber maintains the seal in contact with aggressive media.

Material Silicone rubber
Color White
Shape Round solid plug (no hollow center)
Size Range (Dimension A) 2.7 mm to 14 mm (25 sizes, 0.3–0.5 mm increments)
Dimensional System Metric
Max Temperature Up to 250°C (482°F)
Chemical Resistance Corrosion, acid, alkali resistant
Mounting Method Press-fit by hand, tool-adjustable for tighter fit
Application Equipment dustproofing, pipe end sealing, panel hole blanking, automotive, chemical, laboratory

❓ Frequently Asked Questions

How is this plug different from a T-type flanged plug?

This is a solid round plug with no flange—the entire plug body inserts into the hole and sits flush with or slightly below the surface. A T-type flanged plug has a wider head that sits on the surface outside the hole, preventing the plug from passing through. This solid plug is better suited for through-holes where a flush finish is needed on both sides, or where a flange would interfere with adjacent components.

How do I select the right size?

Measure the diameter of the hole you need to plug (dimension A). Select a plug size that matches or is one increment larger than your measured hole diameter. The silicone compresses slightly to grip the hole wall—a plug that is too small will not seal reliably; one that is too large may require tool assistance to insert. The fine 0.3–0.5 mm size increments allow precise matching for most standard metric hole sizes.

Can this plug be used in holes that carry liquid or gas under pressure?

This plug is designed for sealing static holes against dust, moisture, and light liquid or gas ingress—it is not rated for pressurized pipe or vessel applications. For pressure-rated sealing, a threaded plug or pressure-rated stopper with a specified pressure rating would be more appropriate.

Is this plug suitable for use with acids and chemicals?

Yes. Silicone rubber has good resistance to a wide range of acids, alkalis, and chemical media. It is suitable for use in chemical processing, laboratory, and industrial environments. For highly concentrated strong acids or specific solvents, verify compatibility with silicone rubber before use.

Can I use tools to install the plug for a tighter fit?

Yes. While the plug can be installed by hand for most applications, a flat tool or press can be used to seat the plug more firmly in the hole for a tighter, more secure fit. Avoid sharp tools that could cut or damage the silicone body.

Is the plug reusable after removal?

Yes. Silicone rubber retains its shape and elasticity after removal. The plug can be pulled out by hand or with a flat tool and reinserted in the same or a different hole of the same size. Inspect the plug for cuts or deformation before reuse.

🛒 Select your diameter above, then add to cart.

You may also like

Recently viewed