UL Metric Threads

Flanged Caps are designed for easy assembly and removal, either with automated equipment or by hand. Typically used to protect metric or imperial threads, with or without O-Rings. The larger flange allows for faster application and removal when using it by hand.

For the purpose of quality control; the natural coloured caps allow you to see through the cap and check whether the O-ring is installed, or not installed, on the protected fitting.

Provides a snug and secure fit.

• Designed to cover and protect threads.

• Protects from damage, dirt, and moisture.

• Used in the automotive and engineering industries.

Material: TPE, LDPE Colour: Yellow, Natural Series Code: SRCTLTPE, SR1116

High-temperature flanged caps shield openings from contaminants and damage in extreme heat conditions. These caps are built to withstand high temperatures, while maintaining their structural integrity, and sealing properties.

A flanged design extends beyond the edge of the component, providing additional coverage. Provides a secure grip for easy application and removal, even in challenging conditions.

Used in the automotive and manufacturing industries, as well as applications requiring metal finishing.

• Designed to protect threaded or non-threaded ends of pipes, tubes, and fittings. Typically used to for metric or imperial threads, both with and without O-rings.

• Simple installation and removal, either with automated equipment or by hand.

• Designed to withstand high temperatures.

Material: Silicone Colour: Yellow, Grey, Clear, Pink Series Code: SR5754

Stud Protection Caps protect threaded studs and bolts against damage, contamination, and corrosion. These caps are designed to resist severe temperatures without losing structural integrity or sealing characteristics.

The studded construction protects against injuries from protruding threaded rods.

Used in the automotive and manufacturing industries, as well as in applications that need metal polishing.

• Provides general protection during manufacture, storage, and transportation even in severe temperatures.

• Simple installation and removal, either with automated equipment or by hand.

• Ensures a snug fit.

Material: TPE/TPV – PIR Colour: Black Series Code: SR1026

This range of high temperature masking plugs features Silicone Rubber Tapered Plugs, EPDM Tapered Plugs and other Tapered Rubber Plugs made from Thermoplastic Rubber (TPR).

This extensive range of Tapered Plugs is available as a solid plug or with a hollow core, to aid in compression. Solid and hollow core options are available in our EPDM and High Temperature Silicone Plugs ranges. The hollow centre provides a cost-effective solution for larger sizes. The hollow design is more flexible than solid plugs, and allows for easier application.

Our Tapered Rubber Plug range features Univesal Plugs made from TPR. The tapered plug is designed to mask holes without masking the surrounding areas, and a pull tab allows for easy installation and removal. Suitable for temperatures up to 125C.

• Colours: Black, Blue, Green, Natural, Pink, Red and Yellow
• Simple push-fit design

Parallel protection plugs are general-purpose plugs that are used to protect a variety of applications.

The thermoplastic elastomer range is recommended for applications where resistance to acid is required. The PVC range is highly resistant to shredding and therefore ideal for threaded applications. The green vinyl range works well with applications where oils and greases are present.

Features a parallel or straight wall design that ensures a secure and snug fit while preventing contaminants, damage, dirt, corrosion, moisture, and debris during storage and transportation.

• Parallel design ensures a secure and snug fit that prevents contaminants, corrosion, and debris during storage and transportation.

• Easy to install and remove, and provides a neat finish.

• Suitable for various applications including automotive, manufacturing, and commercial.

Material: TPE, TPR, TPE/TPV, LDPE, TPE - PIR, PVC, LDPE - PIR, Vinyl Colour: Black, Red, Natural, Green Series Code: SR1067, SRSTG, SRSTLL, SR1015, SR1014, SR1013, SRF0000

A popular series of Parallel Protection Plugs that provide a wide range of protection during storage and transport. Its primary function is to prevent damage, corrosion, dirt and moisture from entering and contaminating the internal part of a component. The push-fit plug can be removed easily with its flange, which provides an effective grip.

This series is manufactured from Post Consumer Recycled material, which is designed to support Essentra’s ESG ambitions and those of our customers. Material: LDPE - PCR Colour: Green Series Code: SRSTPCR

A popular series of Parallel Protection Plugs with a tab design. Designed for effective protection during storage and transportation. Its primary function is to prevent damage, corrosion, dirt and moisture from entering and contaminating the internal part of a component. These plugs have an integrated tab that allows for quick and effortless removal, without the need for additional tools.

This series is manufactured from Post Consumer Recycled material, which is designed to support Essentra’s ESG ambitions and those of our customers. Material: LDPE - PCR Colour: Green Series Code: SRSTLLPCR

Pull Tab Caps are designed to protect applications from contamination and spillages. The pull tab design provides more surface contact area, requiring less gripping force during installation and removal.

The tabs are particularly usefull in applications requiring fast removal during mechanical process and for this reason are a popular choice across various industries.

The flexibility of the materials used allows for a tight fit on to applications. The addition of the tab makes them an essential selection.

• Designed to protect from contamination and spillages.

• Flexible design means it can strech on to slightly larger dimensions for a snug fit.

• Used in the food industry, industrial applications, or storage applications.

Material: EVA, PVC Colour: Yellow, Black, Red Series Code: SR6110, SR1066

Quick Fit Connector Caps are designed for easy and secure connections to connectors, fittings, and ports.

Provides reliable protection against contamination, moisture, and physical damage. Their reusability and durability make them a cost-effective option for both temporary and long-term protection.

Used in a variety of sectors, including automobiles, manufacturing, and hydraulics.

• Flexible and ergonomic design ensures a snug fit.

• Simple installation and removal, without the need for tools or complicated processes.

• Resistant to impacts, chemicals, and temperature fluctuations.

• They can be reused.

Material: LDPE Colour: Yellow Series Code: SRQCF

Quick Fit Connector Caps are designed to protect male quick-release connectors that meet SAE standards. Used in hydraulic applications to safeguard components from dust, moisture, shock damage and fluid leak residue, which could impact the hydraulic system during manufacturing, testing, storage and transport. It features a long centre tab that allows for easy removal with a strong grip, making it especially important for fluid applications.

This series is manufactured from Post Consumer Recycled material, which is designed to support Essentra’s ESG ambitions and those of our customers. Material: LDPE - PCR Colour: Green Series Code: SRQCFPCR

Slotted Plugs are designed with a double sealing ring on the underside of the flange that provides a secure and reliable seal. The design includes five complete threads for a secure fit. Offers protection from dirt, dust, debris, liquid residue and corrision. Head designed not to trap liquid when the plug is secured in place.

These Sealing Plugs are easy to install and remove by hand. The hex head design allows the plug to be applied or removed with a screwdriver, spanner, Allen key or socket. The range covers an extensive offering of dimensions suitable for Metric, BSP, and UNF threads.

Used in various applications, including hydraulic, pneumatic, and general engineering industries.

• Designed with a double sealing ring for a secure and reliable seal.Designed with a double sealing ring for a secure and reliable seal.

• Protects from contaminants and ingress of moisture.

• Easy to install and remove by hand.

• SRF1007, SRF1005, SRF1117

Material: LDPE, PA, PE Colour: Yellow, Blue Series Code: SR1005, SR1007, SR1117