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Sealing Threaded Caps & Plugs

 (10 product groups)

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Threaded O-ring Plugs - Metric Threads

In stock In production

Threaded O-ring Plugs for Metric Threads include a compressed flange lip and an O-ring to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a spanner, screwdriver, or by hand. Metric threads are available. The fine taper of metric tapered thread allows for the best possible force transmission. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Material: HDPE, Nylon
  • Colour: Yellow, Orange

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Threaded O-ring Plugs - NPT Threads

In stock In production

Threaded O-ring Plugs for NPT Threads include a compressed flange lip and an O-ring to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole. It may also absorb paint, which keeps paint flaking to a minimum.

It may be installed by hand or with a 12-point socket head, screwdriver or wrench. This threaded plug is suggested for usage where strength and abrasion resistance are required since it can tolerate temperatures ranging from -40F to 230F | -40C to 110C. Used in industries such as oil and gas, plumbing, and automotive where leak-proof seals are critical to system integrity.

  • Material: Nylon, HDPE
  • Colour: Natural, Black

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Threaded O-ring Plugs - NS-NF Threads

In stock In production

Threaded O-ring Plugs for NS and NF Threads include a compressed flange lip and an O-ring (optional) to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a hex wrench, screwdriver, or hand. Fits standard NS (National Special) and NF (National Fine) Class 1-2-3 threads. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Material: PP
  • Colour: Red

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Threaded O-ring Plugs - UNF Threads

In stock In production

Threaded O-ring Plugs for UNF Threads include a compressed flange lip and an O-ring (optional) to provide a watertight seal and superior leakage prevention for hydraulic threads. The threaded O-ring keeps contaminants like dirt, dust, debris, and moisture out of the hole.

It may be installed using a hex wrench, screwdriver, or hand. Often used on flat-faced hydraulic fittings, it is recommended when strength and resistance are desired as it can withstand temperatures that range from -40F to 230F | -40C to 110C. Used in oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Material: PP, LDPE, HDPE, Nylon
  • Colour: Yellow, Red, Natural
  • Material Flammability Standard: UL94 V-0

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Threaded Protection Plugs - Wide Flange

In stock In production

These Wide Flange Threaded Protection Plugs protect threads and fittings from damage during production, storage, and shipment, ensuring they remain in good condition and ready for use. Their nitrile gasket seals the plug to the mating surface for leak-tightness. The protection plug protects from contaminants like dirt, dust, debris, and moisture from the hole.

Its wide flange design keeps any paint flakes from the hole when removed. It is easy to install or remove by hand, screwdriver, or torque wrench. Due to its Nylon material, it is recommended for intermittent temperatures from -40C to +100C. Used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: Nylon
  • Colour: Yellow

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Threaded Sealing Caps - Metric Threads

In stock In production

These Threaded Sealing Caps for Metric Threads protect threads and fittings from damage during production, storage, and shipment, ensuring that they remain in good condition and ready for use when needed. The cap is fitted with an internal neoprene rubber sealing disk to limit fluid leakage, plus it reduces potential shearing. The protection plug protects from contaminants like dirt, dust, debris, and moisture from the hole.

It is easy to install and remove by hand, but its hex head allows the plug to be applied or removed with a spanner or socket at low torque. They are suitable to protect metric threads and are used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: HDPE
  • Colour: Yellow

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Threaded Sealing Caps - UNF Threads

In stock In production

Threaded Caps, also known as Sealing Caps, are an ideal solution for covering and protecting exposed threads. Threaded Sealing Caps are commonly used in the automotive, fluid power and engineering industries for the protection of threaded assemblies and components.

Our sealing thread cap range is made from High Density Polyethylene (HDPE) that is Yellow in appearance. The HDPE material reduces the potential of shearing. The threaded cap includes a Neoprene sealing disk to limit fluid leakage.

  • Suitable for Unified (UNF) threads.

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Threaded Sealing Plugs - BSP/Gas Threads

In stock In production

These Threaded Sealing Plugs for BSP/GAS Threads are designed with a double sealing ring on the underside of the flange to provide a secure and reliable seal. The nylon material absorbs paint, minimising paint flaking and protects from contaminants like dirt, dust, and debris, not trapping liquid and moisture from the hole.

It is easy to install and remove by hand, but its hex head allows the plug to be applied or removed with a spanner, Allen key or socket. Due to its material, it is capable of withstanding temperatures in the range of -40F to 320F | -40C to 160C. Used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: Nylon
  • Colour: Yellow

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Threaded Sealing Plugs - Metric

In stock In production

These Threaded Sealing Plugs for Metric Threads are designed with a double sealing ring on the underside of the flange to provide a secure and reliable seal. The nylon material absorbs paint, minimising paint flaking and protects from contaminants like dirt, dust, and debris, not trapping liquid and moisture from the hole.

It is easy to install and remove by hand, but its hex head allows the plug to be applied or removed with a spanner, Allen key or socket. Due to its material, it is capable of withstanding temperatures in the range of -40F to 320F | -40C to 160C. They are suitable to protect metric threads and used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: Nylon
  • Colour: Yellow

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Threaded Sealing Plugs - UNF Threads

In stock In production

These Threaded Sealing Plugs for UNF are designed with a double sealing ring on the underside of the flange to provide a secure and reliable seal. The nylon material absorbs paint, minimising paint flaking and protects from contaminants like dirt, dust, and debris, not trapping liquid and moisture from the hole.

It is easy to install and remove by hand, but its hex head allows the plug to be applied or removed with a spanner, Allen key or socket. Due to its material, it is capable of withstanding temperatures in the range of -40F to 320F | -40C to 160C. Used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: Nylon
  • Colour: Yellow

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