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Threaded Caps

 (6 product groups)

Threaded caps also known as threaded plastic caps, play a crucial role in protecting your component’s threads from damage, which can easily occur during handling at various stages, including manufacturing and transportation.

They are available in various thread sizes to ensure a precise fit. Threaded caps made from different plastic materials are particularly popular. Additionally, threaded plastic caps form an airtight seal to protect against moisture and other damaging elements that can corrode the part.

A threaded sealing cap is primarily used to protect the threads of a component and provide an airtight seal. One of its key functions is to prevent damage to the threads during handling, shipping, and storage, ensuring that the component remains in good working condition. Additionally, the cap provides environmental protection by sealing the component, which keeps out moisture, dust, dirt, and other contaminants that could lead to corrosion or other forms of damage.

Furthermore, a threaded sealing cap plays a crucial role in containment by keeping fluids or gases within a component, thereby preventing leaks. This is especially important in applications where maintaining the integrity of the contained substance is critical. The cap also helps in preserving the component's functionality by preventing exposure to harmful environmental elements.

Threads & Materials

Choose from various thread types including: BSPgasJICmetric and UNF in the following materials:

  • HDPE
  • LDPE
  • Nylon
  • PA6
  • Plastic
  • Polyamide
List Grid

Threaded Protection Caps

Threaded Protection Caps are designed for use with BSP and Gas Threads. Protects threads and fittings from damage during manufacturing, storage and transportation. The knurled head shape allows for easy installation and removal by hand, by simply twisting them on to the pipe or tube.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • The protection cap keeps contaminants like dirt, dust, debris, and moisture out of the hole.
  • Used in various applications, including hydraulic and pneumatic systems, automotive, and industrial applications.
Material: LDPE, HDPE, Nylon Colour: Natural, Yellow, Red Series Code: SR1018, SRF0015, SRF0014

Threaded Protection Caps - Metric Threads

Threaded Protection Caps are designed for use with Metric Threads. Protects threads and fittings from damage during manufacturing, storage and transportation. The knurled head shape allows for easy installation and removal by hand, by simply twisting them on to the pipe or tube.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • Suitable for Metric threads
  • Used in various applications, including hydraulic and pneumatic systems, automotive, and industrial applications.
Series Code:

Threaded Protection Caps - UNF/JIC Threads

Threaded Protection Caps are designed for use with UNF and JIC Threads. Protects threads and fittings from damage during manufacturing, storage and transportation. The knurled head shape allows for easy installation and removal by hand, by simply twisting them on to the pipe or tube. Can tolerate temperatures between -30C and +80C.

  • Features a knurled head design that makes them easy to install and remove by hand by twisting them onto the pipe or tube.
  • If you pick the yellow option, they are made of HDPE and have a long profile, which allows for more threading turns.
  • Used in various applications, including hydraulic and pneumatic systems, automotive, and industrial applications.
  • Yellow option can withstand temperatures between Min. -30C, Max. +80C.
Series Code:

Threaded Sealing Caps

Threaded Sealing Caps are designed for use with BSP and Gas Threads protect threads and fittings from damage during production, storage and shipping. Features an interior neoprene rubber sealing disc that limits fluid leakage and reduces possible shear. Used in hydraulic and pneumatic systems.

  • The cap is fitted with an internal neoprene rubber sealing disk to limit fluid leakage, plus it reduces potential shearing.
  • 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.
  • Used in various applications, including hydraulic, pneumatic and general engineering industries.
Material: HDPE Colour: Yellow, Red Series Code: SR1126

Threaded Sealing Caps - Metric Threads

Threaded Sealing Caps designed are designed for use with Metric Threads. Protects threads and fittings from damage during production, storage and shipping. Features interior neoprene rubber sealing disc that limits fluid leakage and reduces possible shear. Used in hydraulic and pneumatic systems.

  • The cap is fitted with an internal neoprene rubber sealing disk to limit fluid leakage, plus it reduces potential shearing.
  • 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.
Series Code:

Threaded Sealing Caps - UNF Threads

These Threaded Sealing Caps for UNF 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. Used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: HDPE
  • Colour: Yellow