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Metric Threads

 (40 product groups)

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Snap-on Bolt Caps

Bolt Caps with a simple and convenient snap-on design are a cost effective options that can be used to cover exposed screw, nuts, washers and bolts.

They improve the finished appearance, while providing protection against dirt, damage and long-term exposure to the surrounding environment.

Our range features two type options; Type 1 can be used to protect bolts, screws and nuts and Type 2 protects a washer in addition to the bolts, screws and nuts. Available to fit various bolt thread sizes - you are sure to find an option for your application.

  • Material: Low-Density Polyethylene (LDPE)
  • Colour: Black

Socket Screw Cover Caps

These Socket Screw Cover Caps cover and protect socket head screws from dust and dirt, while providing a quick and clean finish to internal hex screws.

Commonly used for the inside of UPS boxes when high voltage cables pass close to metal screw heads, which occurs when space is limited. The cap can be applied in order to prevent interference between the two, as the screw head needs to be isolated. They are also used in appliances, electrical applications and automotive.

  • Material: Silicone, LDPE
  • Colour: Black, White, Grey
  • Series Code: SR1628, SR1813

Soft Knurled Caps

Soft Knurled Caps are a simple and economical way of protecting metric and UNF threads during painting, assembly or transportation. They have a knurled exterior and are manufacured from a soft, durable TPE that provides a better grip and a tight fit. Protects pipe ends from damage, and keeps dirt and debris out.

Easy to install and remove. They can operate in a temperature from -60 C up to 135 C.

Commonly used in plumbing, HVAC, and industrial applications.

  • Simple and economical way of protecting metric and UNF threads.
  • Easy to install and remove.
  • Operatures in temperatures from mimimum -60 C up to maximum 135 C.
Material: TPEColour: BlueMaterial Flammability Standard: Series Code: SRF0010

Tapered Caps & Plugs - Standard

Standard Tapered Caps and Plugs are versatile components designed for use as a plug or a cap. The tapered profile allows the part to plug multiple inner diameters or to cap multiple outer diameters.

These dual function plugs or caps are typically used to protect against damage, dirt, moisture, and other corrision during storage and shipping.

With a straight forward push fit design, these dual function components are easy to insall and remove. The extensive range offers a varied selection of sizes that range from 2.9 mm up to 345.0 mm.

  • Plug design suitable for multiple inside and outside diameters.
  • Protects threaded and non-threaded pipes, ports, and access points against damage, dirt, moisture, debris, and corrosion.
  • Suitable for use in hydraulic systems, automotive components or medical industries.
Material: LDPEColour: Red, Blue, Black, Clear, YellowMaterial Flammability Standard: Series Code: SR1000, SR1111, SRF0020

Tapered Caps & Plugs - Wide Flange

Wide Flange Tapered Caps and Plugs offers additional protection to the surrounding area on the bearing surface. The wider flange keeps the part from being accidently pushed down through the mating part. Designed to be used as a plug or a cap. The tapered profile allows the part to plug muliple inner diameters or cap multiple outside diameters.

These dual function components are typically used to protect against damage, dirt, moisture, and other corrision during storage and shipping.

Featureing a straight forward push-fit design, they are easy to insall and remove.

  • Prevents the plug from being accidentally pushed down through the contact piece.
  • Protects threaded and non-threaded pipes, ports, and access points against damage, dirt, moisture, debris, and corrosion.
  • Suitable for use in hydraulic systems, automotive components, chemical or medical industries.
Material: LDPEColour: Red, BlueMaterial Flammability Standard: Series Code: SR1001, SR1115

Tapered Paper Caps

Tapered paper caps are a type of protective cap used to cover the ends of tubes, pipes or other cylindrical objects. They are made from a mixture of post-consumer and virgin materials, making them a recyclable option.

Ideal for painting and powder coating applications and can help prevent damage and contamination, ensuring that tubes and pipes are in good condition. It can withstand operating temperatures of up to 204 C.

  • Material: Crepe Paper
  • Colour: Brown
  • Series Code: SR6114

Tear Tab Caps

Tear Tab Caps are a standard, off-the-shelf solution that will allow you to meet your customers demands without those all too common time delays.

Tear Tab Caps are quick-fit and quick-release caps. As a rapid solution, they can be easily fitted and removed across an array of applications, including; critical hydraulic tubes and pipes, such as those that carry oils and other fluids around vehicles and machineries. This makes them an ideal choice for the specialist vehicle manufacturing industry, and other automotive and manufacturing sectors.

Tear Tab Caps also assist in the protection of tube and pipe ends during transportation and storage. They protect parts from damage, dirt, moisture and other forms of ingress. These caps are highly versatile, and ideal for a range of applications and different threads, including; BSP, GAS, UNF, JIC and NPT.

Made from Low Density Polyethylene (LDPE), the caps feature a simple tear-away tab for quick release, and fast removal. The ease of extracting the Tear Tab Cap from the hydraulic pipework makes the removal process faster. By simply pulling the tab, the cap splits open, tearing away.

The LDPE material is tough and flexible. They provide many of the advantages of PVC caps, such as integrity and cleanliness.

  • Colours: Blue, Natural and Yellow
  • RoHS Compliant
  • Series Code: SR1022, SR1033

Threaded O-ring Plugs - Metric Threads

Threaded O-ring Plugs for metric threads include a compressed flange lip and an O-ring to provide a watertight seal, for a superior leakage prevention, for hydraulic threaded fittings. Provides a tight seal and therfore prevents contaminant ingress from dirt, dust, debris, and moisture out of the aperture.

Can be installed using a spanner, screwdriver or by hand. Metric threads are available, with a cylindrical inner and outer diameter precise in millimetres. The fine taper of metric tapered thread allows for the best possible force transmission.Commonly used on hydraulic fittings, oil and gas, plumbing, and automotive sectors where leak-proof seals are crucial to system integrity.

  • Keeps contaminants like dirt, dust, debris, and moisture out of the hole.
  • Metric threads are available with a cylindrical inner and outer diameter precise in millimetres.
  • Used in oil and gas, plumbing, and automotive sectors.
Material: HDPEColour: YellowMaterial Flammability Standard: UL94 V-2, Series Code: SR1125

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;TPEColour: Red, Yellow, WhiteMaterial Flammability Standard: Series Code: SRTFUGP, SRTFTG, SRF0012

Threaded Protection Caps - Metric Threads

Threaded Protection Caps for Metric Threads threads and fittings protect threads and fittings from damage during production, storage, and shipment, ensuring that they remain in good condition and are ready for use when needed. The protection cap keeps contaminants like dirt, dust, debris, and moisture out of the hole.

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.

  • Material: HDPE, LDPE
  • Colour: Yellow, Red, Natural
  • Series Code: SR1161, SR1018, SRF0015

Threaded Protection Plugs - Metric Threads

Threaded Protection Plugs for Metric Threads protect threads and fittings from damage during production, storage, and shipment, ensuring they remain in good condition and ready for use when needed. The protection plug protects from contaminants like dirt, dust, debris, and moisture out of the hole.

Features a knurled head design that makes them easy to install and remove by hand by twisting them or onto the pipe or tube. Ideal for Metric thread applications exposed to high fluid flow residue and vibration. Used in various applications, including hydraulic, pneumatic and general engineering industries.

  • Material: LDPE
  • Colour: Red
  • Series Code: SR1002

Threaded Protection Plugs - Quick Fit

  • Its ergonomic pull tab makes it simple to install and remove.
  • It is offered in either Silicone, a reusable high temperature resistant material, or EPDM, a reusable and cost-effective material with less heat but excellent chemical resistance.
  • Used in various applications, including hydraulic, pneumatic and general engineering industries.
Material: PE-LD
Colour: Red
  • Material Flammability Standard:
  • Series Code: SR1002, SR1009

Threaded Sealing Caps - Metric Threads

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
  • Series Code: SR1126

Unicap Cover Caps

Unicap Cover Caps and washers are designed to conceal and protect exposed screws or bolt heads for aesthetic or safety reasons. These caps and washers are resistant to corrosion, abrasion, and impact due to their material, offering long-lasting protection and durability.

In addition, they protect against dirt and are easy to install and remove by push fit. Available in both low profile and high profile. Used in construction, furniture and appliances.

Please note that in this product range you will find caps and washers which are sold separately and you will need to order both items.

  • Material: PP, HDPE, LDPE
  • Colour: Grey, Silver, Black, White, Natural, Flint, Brown, Stone, Beige, Gold, Orange
  • Series Code: SR1801

Uniscrew Caps

Uniscrew Caps are intended to fit into the screw hole for a seamless, flush look. Their function is to conceal the screw heads, which can accommodate most sizes. These caps are connected to a washer by a hinge that folds neatly when inserted into the cap.

The durable material protects against damage, dirt, moisture and corrosion during storage and shipping. They are easy to install simply by push fit and are often used in furniture assembly, automotive interiors, and electrical equipment.

  • Material: PP
  • Colour: Black, White
  • Series Code: SR1807

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