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Hole Plugs

 (16 product groups)

What is a hole plug?

A hole plug is a device that is used to seal or to fill holes in order to prevent ingress and any liquids or gases from escaping or to keep out dirt and moisture, and to also protect internal threads. They are a durable yet cost-effective component used across many industries. Easy removal and their corrosion-resistant properties are just some of the benefits of choosing to use them in your applications.

Our range features various types and styles including tapered plugs, barrel plugs, rubber stoppers, hole blanking plugs, flexible plugs and threaded sealing plugs to name a few.

Materials

Our range is stocked full of plugs manufactured from materials such as:

Rubber - including silicone rubber plugs.

Plastic - including EPDM stoppers, LDPE, PVC, nylon and many more.

Applications & Processes

Hole plugs are used in various applications and processes - even those that require high temperatures. Below are just some of the examples of where they are used:

  • Pipe end protection
  • Masking & Powder coating processes
  • Hydraulic applications
  • Thread Protection
  • Sealing & Finishing

Thread Options

Thread choice need not be a concern as we stock plugs in the following; BSP, Metric, NPT, SAE, UNC, UNF and UNJS threads. Shape options are large too with domed plugs, flat plugs, and round and rectangular on offer. This is one of our largest ranges of plugs and we allow free samples on every option giving you the confidence you have made the right choice.

Our range is jam-packed full of various sizes including hole sizes to choose from. We also offer tapered plugs, pull plugs, body plugs, and snap fit plugs and masking plugs to suit your applications.

Each plug brings its own unique set of characteristics, so we have put together this handy guide to help you make the right decision when choosing hole plugs - check out Hole Plugs Explained for more information.

List Grid

Covered Tapered Plugs

Covered Tapered Plugs have convex edges that guarantee a secure fit. Features a push-fit design that makes it simple to use and remove. Used for pipes, blind holes and furniture.

  • Designed to ensure a secure fit due to their convex sides.
  • It protects against contaminants, debris, and damage.
  • Reusable due to the material and without affecting the effectiveness of the sealing.
Material: Silicone Colour: Grey, Yellow, Green, White, Red, Black, Pink, Purple, Blue, Clear Series Code: SR5751

Banjo Union Plugs

Banjo Union Plugs protect banjo unions against damage and fluid residue. They are sturdy and suitable for hydraulic and fluid systems. Can be supplied with or without a cover tab. Compatible with DIN 7642 B/E banjo unions.

  • Designed to protect from damage, wear and tear, and dirt or moisture ingress.
  • Provides a secure fit on banjo unions DIN 7642 B/E, forming a reliable sealing surface to prevent leaks.
  • It can be used in applications in automotive or industrial machinery.
Material: LDPE Colour: Natural Series Code: SR1016

Blasting Plug

These Blasting Plugs are intended to mask blasting and wet paint applications. The inside pipe surface remains clean and is shielded from steel grit damage and impact.

When painting, it provides minimal shadowing and can endure high pressures, making it highly durable.

It incorporates a screwdriver slot for easy mounting and disassembly. It is resistant to temperatures ranging from -30C to +50C. It is commonly used in mechanical, construction, oil and gas, medicinal, and painting applications.

  • It has a slot for screwdrives with a M16X12 thread size.
  • Can endure hig pressures, and is durable.
  • Resistant to temperatures ranging from -30C to +50C.
Material: LDPE Colour: Red Series Code: SRF0013

Centre Pull Tab Hose Plug

Centre Pull Tab Hose Plugs are designed to plug and seal hose ends. They have ribs that ensure a tight fit when plugging hydraulic lines without straining them. It features a high tensile strength, toughness, and flexibility.

The internal, centrally located pull tab enables simple plug insertion and removal, making it a hassle-free alternative. Furthermore, the tapered form allows for the plugging of numerous interior diameters. The plugs snug fit and secure seal effectively prevents dust, dirt, and other impurities from entering the hose. This helps protect internal components, guaranteeing optimal performance.

Commonly used for construction, automotive, and agricultural applications.

  • Features a high tensile strength, toughness, and flexibility.
  • Features ribs that ensure a tight fit when plugging hydraulic lines without straining them.
  • The tapered form allows for the plugging of numerous interior diameters.
Material: EVA Colour: Yellow Series Code: SR6111

DKO Side Release Plugs

DKO Side Release Plugs protect DKO-compression fittings during transit, storage and processing by preventing damage and contamination. The flexible end fits securely into the DKO swivel nut. A side pull tab allows for easy removal.

  • Protects DKO-compression fittings during transit, storage, and processing from damage and contaminants.
  • The flexible end fits snugly into the DKO swivel nut, and the side pull tab allows easy removal.
  • Commonly used to meet the needs of industries such as automotive, manufacturing, and machinery.
Material: LDPE Colour: Red, Yellow Series Code: SR1121

Ezeplugs

Ezeplugs are designed to seal and secure threaded holes. They feature a central or lateral pull tab for easy insertion and removal. Available in multiple sizes; they can protect over 25 imperial or metric thread sizes against damage, dirt, moisture and corrosion during storage and shipping. The flexible pull tab makes removal straightforward.

  • Includes a central or lateral pull tab that allows them to be easily inserted and removed from threaded holes.
  • It protects against damage, dirt, moisture, and corrosion during storage and shipping.
  • It is simple to install with the patented quick-fit design and locks the plug in place with a simple push.
Material: LDPE Colour: Red Series Code: SR1055

Masking Washer Plugs

High temperature Washer Plugs are designed to mask the surface around a threaded or plain hole, with an integrated washer and plug that function as a single item. Easy to install and remove; they ensure a snug fit and secure seal to prevent leakage or contamination. Capable of withstanding temperatures of up to 250C.

  • It has an integrated washer and plug that allows them to function as a single item.
  • Can withstand high temperatures of up to 250 degrees Celsius.
  • Used for powder coating, painting, plating, sealing, automotive assembly, and electronics manufacturing.
Material: Silicone, EPDM Colour: Natural, Black, White, Grey, Dark Green, Yellow, Pink, Purple, Red Series Code: SR1065, SR1092, SR5753

NPT Thread Plugs

NPT Thread Plugs are used to seal and protect the ends of BSP and NPT threaded pipes and fittings. The robust design ensures they can withstand high pressure, temperature and damage during storage and shipment. The tapered form allows for a tight, leak-free fit across various inner diameters.

  • Used to seal and protect the ends of BSP/NPT threaded pipes and fittings.
  • Their robust design allows them to withstand high pressure, temperature, corrosion, dirt, and damage during storage and shipment.
  • Used in plumbing pipes, HVAC, automotive, and industrial applications.
Material: LDPE Colour: Blue Series Code: SR1114

Paper Masking Plugs

Paper Masking Plugs are designed to seal off openings during painting, coating or surface treatment processes. Made from high-quality paper, they offer excellent flexibility and durability. The are resistant to chemicals. Ideal for use on metal, plastic, glass and wood surfaces.

  • Designed to protect and seal off openings during painting, coating, or surface treatment processes.
  • Allows for easy insertion and removal, ensuring a tight and secure fit in a wide range of hole sizes and shapes.
Material: Crepe Paper Colour: Brown Series Code: SR6113

Pipe Bevel Edge Protectors and Plugs

Pipe Bevel Edge Protectors and Plugs are designed to protect the bevel of pipes when used in conjunction with a steel bevel protector. The protector is fastened by placing it on to the pipe end and hammering down the clamping mechanism. The system will expand, pushing the protector against the inner pipe surface. It is used in applications such as oil and gas drilling rigs and construction sites.

  • Essential to secure the pipe plug during handling, shipping, and storage.
  • Designed to fit firmly over the end of pipes ranging in size from 8" to 120"
  • Used in applications for oil and gas drilling rigs, construction sites, warehouses and factories.
Material: PE Series Code: SR1360

Ribbed Pipe-End Plugs

Ribbed Pipe End Plugs are designed to seal the ends of pipes and tubes securely. The straight wall on the outside diameter of the plug offers a solid friction fit with the inside diameter of the mating pipe, giving good protection against impurities entering the pipe.

They are offered in two designs, each with flexible ribs in varying sizes to accommodate a range of NPT and drill pipe schedules. Easy to install and remove due to their close fit.

The are ideal for mechanical and engineering applications in a wide range of industries.

  • Two designs, each with flexible ribs in varying sizes to accommodate drill pipe schedules.
  • Designed to seal the ends of pipes and tubes securely.
  • Ideal for mechanical and engineering use.
Material: LDPE Colour: Black, Blue, Red Series Code: SRPAR, SR1069, SRILUPE, SR1171, SRILUH

Ribbed Tube End Plugs

Ribbed Tube End Plugs provide a reliable seal for tube and pipe ends. The ribbed design ensures a tight fit that helps prevent leaks, while providing grip and stability. The ribbed shape keeps the plug in place under pressure or vibration, and blocks dust, dirt and contaminants. Easy, push-fit installation makes things simple and means no tools are required.

  • Ribbed shape assures a snug fit and prevents leaking while providing added grip and stability.
  • It keeps dust, dirt, and contaminants from entering.
  • It is simple to install, pushed into the hole until it is snug.
Material: PE Colour: Red, White Series Code: SR1604, SR1603

Side Pull Plugs

Side Pull Plugs are a type of plug that features an intergral side pull tab, and is designed for easy removal in awkward locations. Designed to protect threaded or non-threaded holes during production, storage, and transportation. Offers protection against dust, dirt, damage, moisture, acid, and corrosion.

The side pull tab is designed for quick and easy removal, and provides additional help when removing the part from a tightly fitted application. It can withstand temperatures from -40F to 275F (-40C to 135C).

Used in various applications, including machinery, electronics, automotive, and HVAC systems.

  • Protects against dust, dirt, damage, moisture, acid, and corrosion.
  • Withstands temperatures from -40F to 275F (-40C to 135C).
  • Tapered design allows the part to plug multiple inner diameters.
Material: LDPE, TPE Colour: Yellow, Natural, Blue Series Code: SRSTCL2, SR1053, SR1110

Side Release Plugs

Side Release Plugs provide secure and convenient sealing for various applications. The side release mechanism allows for quick insertion and removal without the need for tools, ensuring a tight seal.

  • The side release mechanism enables easy insertion and removal, eliminating the need for additional tools or excessive force.
  • The versatile design of these plugs makes them suitable for various applications across different industries.
Material: LDPE Colour: Natural Series Code: SR1120

Threaded Plugs with Gasket

Threaded Plugs with Gaskets are intended to establish a tight and secure seal that prevents dust, dirt, or other undesired components from entering. The inclusion of a gasket (washer) seal improves sealing capabilities, adding an extra layer of protection against leaks and impurities.

Threaded Plugs are easy to install and remove from the application using a straight screwdriver, hex key or wrench. They can withstand temperatures from -30C up to +90C.

Frequently used in hydraulic and pneumatic systems, automotive, and general engineering sectors.

  • Provides a tight seal, preventing contaminants from entering.
  • Easy to install and remove using a straight screwdriver, hex key or wrench.
  • Can withstand temperatures from -30C up to +90C.
Material: LDPE, PA6, PA;TPE Colour: Red, Yellow, White Series Code: SRTFUGP, SRTFTG, SRF0012

Uniplugs

Uniplugs are versatile plugs designed for a secure and efficient seal in various applications. Available in various sizes to seal different openings, such as holes, pipes or tubes. They ensure a snug fit that prevents leaks, vibrations and the entry of dust or moisture.

  • Ideal choice for industries such as automotive, electronics, and manufacturing.
  • Designed with precision to provide a snug fit, preventing leaks, vibrations, and the entry of dust or moisture.
Material: LDPE Colour: Natural, Red Series Code: SR1039