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Retainers & Threadlockers - Free UK Delivery Over £25 - Buy Online | Zoro

Bondloc B270 Studlock is a permanent green coloured general-purpose adhesive for permanent threaded assemblies. B270 locks studs up to 1in, sealing against leakage and corrosion. It is chemical-resistant, resisting fuels, lubricants and most industrial liquids and gases.  It eliminates double nutting and/or welding of critical assemblies. It also permits reduced casting thickness and ultimate lightness, reduced assembly stress and eliminates cracked castings due to interference fit stresses.  Specifications:  Resin: DimethacrylateColour: GreenFixture Speed No Activator: 10 min.Fixture Speed With Activator: 5 min. Viscosity: 500 cpsGap fill: 0.25mmFlash Point: >100°CShelf Life: minimum 12 monthSpecific Gravity: 1.06.Max Operating Temperature: -55°C to +180°C  Cured Performance:  Full Cure Time: 12 hours.Cure Time with good % of final strength: 2 hoursTypical Breakaway Strength DIN : 40 Nm (25/55)Typical Prevailing Strength DIN : 55 Nm (45/70)Typical Breakaway ISO 10964: 26 Nm (16/36)Typical Prevailing ISO 10964: 36 Nm (22/50)

These B572 and B577 medium-strength pipe seal products are anaerobic sealants designed for the effective locking and sealing of metal pipe fittings. B572 offers a slow curing time suitable for coarse thread applications, while B577 includes Teflon to enhance sealing capabilities and chemical resistance, making it ideal for a variety of demanding environments.

Features and Benefits
•	Single-component application simplifies the application process, ensuring clean and straightforward usage
•	Non-creeping, non-shrinking formula maintains dimensional stability of the assembly, preventing system blockages
•	Vibration and shock load resistance enhances the reliability of pipe connections under mechanical stress
•	Corrosion and galling protection guards metal threads against environmental and chemical damage, prolonging their lifespan

These B620 and B648 retainers are high-strength anaerobic compounds designed for securing cylindrical components, offering enhanced performance under high temperatures and dynamic conditions. B620 is specifically formulated to withstand temperatures up to 200°C, making it ideal for automotive, aerospace, and industrial equipment like engines and turbines. B648 is suited for bonding gears, rotors, and shafts in similar environments, where reliable performance under shock and vibration is critical.

Features and Benefits
•	High-temperature resistance, ideal for environments exposed to high heat
•	Enhance the reliability of mechanical assemblies by ensuring secure fits even under harsh conditions
•	Eliminates backlash in keys and splines preventing mechanical play and wear in critical component interfaces
•	Strengthens heavy press fits enhancing the fit and load capacity of assembled parts
•	Fretting corrosion prevention protects the metal surfaces from the microscopic wear and oxidation that occurs in tight fits
•	Environmental corrosion sealing offers a barrier against damaging environmental elements
•	Designed to minimise the risk of damage from uneven stress distribution during operation
•	Formulated to maintain uniform force distribution, critical for mechanical efficiency and longevity

These B243 threadlockers offer a medium-strength, oil-tolerant formula specifically designed for use on metal threads up to M20. The threadlockers excel in environments where there is an oily film or contamination issue, making them highly suitable for automotive applications involving petrol and diesel engines.

Features and Benefits
•	Specifically formulated to adhere to components with oily surfaces, reducing prep time and ensuring reliable application
•	Medium strength to provide a strong, yet removable bond, suitable for components that may need to be disassembled in the future
•	Single-component system is easy and clean to apply, simplifying the application process
•	Vibration resistance helps prevent loosening under dynamic loads, enhancing component reliability
•	Corrosion prevention protects metal threads from corrosion and environmental damage
•	Enhances the security of threaded joints, ensuring a tight and secure fit

Notes
• Cure time: 24 hours

Bondloc B243 is an Anaerobic formulation designed to be used on parts in an as received condition, such as those with protective films (oils) etc.  Oil tolerant B243 is designed for direct application onto as received parts where a light oily film exists or where surrounding parts contamination is a problem in maintenance.  Specifications:  Resin: Mod MethacrylateColour: Blue ThixotropicCure speed: <15 mins @ 20°CViscosity: 1200-1800 thixotropicGap fill: 0.1mmFlash Point: >85°CShelf life: 12 months @ 20°CSpecific gravity: 1.04Max. Operating Temperature: -53°C to + 150°C  Cured Performance:  Full Cure Time: 24 hoursTypical Breakaway Strength: 12 N/mm²Typical Prevailing Strength: 8-10N/mm²

These high strength studlocks ensure the integrity of mechanical assemblies by securely locking and sealing bolts, studs, and nuts. Ideal for environments prone to vibration, and corrosion, these adhesives are crucial for automotive, manufacturing, and engineering applications and offer a durable solution, enhancing components' safety and lifespan.

Features and Benefits
•	Single-component application makes the stud lock easy and clean to apply
•	Reduces the need for mechanical fittings decreasing operational costs
•	Chemical resistance allows the studlock to withstand harsh environments
•	Rapid cure speed facilitates faster assembly operations
•	Effective from -55°C to +180°C

These medium-strength flexible gasketing products are specially designed anaerobic sealants that cure in the absence of air between close-fitting metal parts. They are optimal for applications requiring reliable sealing and bonding properties, providing enhanced durability and resistance against mechanical and chemical stresses.

Features and Benefits
•	Replaces conventional gaskets, reducing the need for stockpiling various gasket sizes
•	Excellent instant seal effectively fills all voids for a robust seal
•	No need for retorquing, reducing maintenance time and effort
•	High resistance to solvents ensures durability in harsh chemical environments
•	High-pressure resistance maintains sealing integrity under extreme pressures
•	Quick setting times expedite assembly processes

Bondloc B222 Screwlock is a Thixotropic anaerobic threadlocker of low strength designed for easy disassembly of treated components.  B222’s Anaerobic nature allows it to cure only when confined between metal parts.  Applications include all small fasteners, where vibration loosening prevention and non-leakage through threaded fastening is required.  Ideal on small set screws, brass and most types of small threaded nuts, bolts, screws, hex and slot driven components including keyed fasteners etc.  Specifications:  Resin: DimethacrylateColour: Purple White tintCure speed with Activator: <15 mins @ 20°CCure speed without Activator: 15 minutesViscosity- Brookfield Sp3 @ 20rpm: 1200 cps (thixo), Sp3 @ 20rpm: 5000cpsGap Fill/Max Threadform: 0.5mm/M36Flash Point: >100°CShelf Life: 12 months @ 20°CSpecific Gravity: 1.06  Cured performance:  Full Cure Time: 12 hours @ 20°CTypical Strength: ISO 10964: 6Nm M10’sRange of Strength: Breakaway: 4Nm up to 12Nm, Prevailing: 2Nm up to 6 NmDIN 54454 Breakloose: 10Nm max 20NmDIN 54454 Prevailing: 6Nm up to 20Nm

Bondloc B638 Retainer is designed to give high strength retention under cyclic loading. It can retain its full strength and not suffer fatigue under load stress.  It is a cylindrical parts supplement, suited to structural components such as cylindrical parts under dynamic load, keys, splines, even structural tubing with close tolerance fit.  Specifications:  Resin: Urethane Acrylate.Colour: Green.Fixture Speed No Activator: 5 mins.Fixture Speed With Activator: <5 mins.Viscosity: 2500 cps.Gap fill: 0.2mm.Flash Point: >85°C.Shelf Life: 12 months min.Specific Gravity: 1.08.Max Operating Temperature: -55°C to + 150°C.  Cured Performance:  Full Cure Time: 24 hours.Static shear strength: 30 N/mm².

Bondloc B270 Studlock is a permanent green coloured general-purpose adhesive for permanent threaded assemblies. B270 locks studs up to 1in, sealing against leakage and corrosion. It is chemical-resistant, resisting fuels, lubricants and most industrial liquids and gases. It eliminates double nutting and/or welding of critical assemblies. It also permits reduced casting thickness and ultimate lightness, reduced assembly stress and eliminates cracked castings due to interference fit stresses. Specifications Resin Dimethacrylate Colour Green Fixture Speed No Activator 10 min. Fixture Speed With Activator 5 min. Viscosity 500 cps Gap fill 0.25mm Flash Point & gt100C Shelf Life minimum 12 month Specific Gravity 1.06. Max Operating Temperature -55C to +180C Cured Performance Full Cure Time 12 hours. Cure Time with good % of final strength 2 hours Typical Breakaway Strength DIN 40 Nm (25/55) Typical Prevailing Strength DIN 55 Nm (45/70) Typical Breakaway ISO 10964 26 Nm (16/36) Typical Prevailing ISO 10964 36 Nm (22/50) Bondloc Studlock High Strength Threadlocker Size 50ml.

B270 Studlock High Strength Threadlocker 50ml BONB27050

These medium-strength sealant is an anaerobic adhesive specifically designed for metal pipes and fittings, ensuring a durable and reliable seal. The sealants benefits from a slow-curing formula that allows it to cure in the absence of air when applied between close-fitting metal surfaces, ideal for stainless steel, aluminium, galvanized, and other inert materials, it offers a robust solution for industrial and plumbing applications where precision and stability are paramount.

Features and Benefits
•	Single-component formula allows for clean and easy application, no mixing required
•	Does not creep, shrink, or block systems, maintaining the flow and functionality of the system
•	Compatible with any size of pipe fitting for versatile use
•	Vibration and shock load resistance enhance the durability of the seal under dynamic conditions
•	Corrosion and galling protection shield mated surfaces from environmental and mechanical wear

Stainless Steel Pipe Seal 50ml

These high-strength retainers are engineered to securely maintain cylindrical machine parts, ensuring durability and precision in the most demanding heavy-duty applications. Each of these anaerobic adhesives is perfect for boosting assembly reliability in bearings, gears, and other critical mechanical components. Their unique formulation is designed to bond permanently, filling gaps and resisting environmental and mechanical stresses to ensure long-lasting strength and performance.

Features and Benefits
•	Rapid, permanent bonding sets quickly to prevent slippage
•	Enhanced mechanical integrity minimises wear and backlash
•	Corrosion resistant to shield against environmental damage
•	Eco-friendly composition is safer for both users and the environment

High Strength Retainer 50ml

These B572 and B577 medium-strength pipe seal products are anaerobic sealants designed for the effective locking and sealing of metal pipe fittings. B572 offers a slow curing time suitable for coarse thread applications, while B577 includes Teflon to enhance sealing capabilities and chemical resistance, making it ideal for a variety of demanding environments.

Features and Benefits
•	Single-component application simplifies the application process, ensuring clean and straightforward usage
•	Non-creeping, non-shrinking formula maintains dimensional stability of the assembly, preventing system blockages
•	Vibration and shock load resistance enhances the reliability of pipe connections under mechanical stress
•	Corrosion and galling protection guards metal threads against environmental and chemical damage, prolonging their lifespan

Pipe Sealant 50ml

These B620 and B648 retainers are high-strength anaerobic compounds designed for securing cylindrical components, offering enhanced performance under high temperatures and dynamic conditions. B620 is specifically formulated to withstand temperatures up to 200°C, making it ideal for automotive, aerospace, and industrial equipment like engines and turbines. B648 is suited for bonding gears, rotors, and shafts in similar environments, where reliable performance under shock and vibration is critical.

Features and Benefits
•	High-temperature resistance, ideal for environments exposed to high heat
•	Enhance the reliability of mechanical assemblies by ensuring secure fits even under harsh conditions
•	Eliminates backlash in keys and splines preventing mechanical play and wear in critical component interfaces
•	Strengthens heavy press fits enhancing the fit and load capacity of assembled parts
•	Fretting corrosion prevention protects the metal surfaces from the microscopic wear and oxidation that occurs in tight fits
•	Environmental corrosion sealing offers a barrier against damaging environmental elements
•	Designed to minimise the risk of damage from uneven stress distribution during operation
•	Formulated to maintain uniform force distribution, critical for mechanical efficiency and longevity

High Temp Retainer 50ml

These B243 threadlockers offer a medium-strength, oil-tolerant formula specifically designed for use on metal threads up to M20. The threadlockers excel in environments where there is an oily film or contamination issue, making them highly suitable for automotive applications involving petrol and diesel engines.

Features and Benefits
•	Specifically formulated to adhere to components with oily surfaces, reducing prep time and ensuring reliable application
•	Medium strength to provide a strong, yet removable bond, suitable for components that may need to be disassembled in the future
•	Single-component system is easy and clean to apply, simplifying the application process
•	Vibration resistance helps prevent loosening under dynamic loads, enhancing component reliability
•	Corrosion prevention protects metal threads from corrosion and environmental damage
•	Enhances the security of threaded joints, ensuring a tight and secure fit

Notes
• Cure time: 24 hours

Oil Tolerant Nutlock Blue 50ml

Bondloc B243 is an Anaerobic formulation designed to be used on parts in an as received condition, such as those with protective films (oils) etc. Oil tolerant B243 is designed for direct application onto as received parts where a light oily film exists or where surrounding parts contamination is a problem in maintece. Specifications Resin Mod Methacrylate Colour Blue Thixotropic Cure speed & lt15 mins @ 20C Viscosity 1200-1800 thixotropic Gap fill 0.1mm Flash Point & gt85C Shelf life 12 months @ 20C Specific gravity 1.04 Max. Operating Temperature -53C to + 150C Cured Performance Full Cure Time 24 hours Typical Breakaway Strength 12 N/mm Typical Prevailing Strength 8-10N/mm Bondloc Nutlock Medium Strength Threadlocker Size 50ml.

B243 Nutlock Medium Strength Threadlocker 50ml BONB24350

These high strength studlocks ensure the integrity of mechanical assemblies by securely locking and sealing bolts, studs, and nuts. Ideal for environments prone to vibration, and corrosion, these adhesives are crucial for automotive, manufacturing, and engineering applications and offer a durable solution, enhancing components' safety and lifespan.

Features and Benefits
•	Single-component application makes the stud lock easy and clean to apply
•	Reduces the need for mechanical fittings decreasing operational costs
•	Chemical resistance allows the studlock to withstand harsh environments
•	Rapid cure speed facilitates faster assembly operations
•	Effective from -55°C to +180°C

Studlock Green 50ml

These low strength threadlockers are designed for securing small threaded metal components, making them essential for applications where easy disassembly is a requirement. The threadlockers prevent loosening due to vibration, making them ideal for delicate assemblies involving fragile alloys and small fasteners. 

Features and Benefits
•	Single-component threadlocker ensures clean and easy application
•	Corrosion and leak protection seals threads to guard against environmental damage
•	Suitable for all sizes of fasteners, reducing inventory requirements
•	Formulated to allow disassembly without damage, using normal hand tools

Screwlock Purple 50ml

These B603 oil-tolerant retainers are high-strength anaerobic adhesives specifically designed for applications where perfect cleaning of parts isn't feasible. The oil-tolerant properties ensure effective performance even on surfaces with residual oils, making them highly suitable for use in automotive, manufacturing, and heavy machinery industries where such conditions are common.

Features and Benefits
•	Effectively bonds parts that contain oily residues, reducing preparation time and cleaning costs
•	Ensures dependable and durable bonds, enhancing the longevity and performance of machinery
•	Prevents mechanical play and wear, improving the operational stability of components.
•	Corrosion protection shields against environmental and operational corrosion, extending the service life of components

Oil Tolerant Retainer 50ml

These B510 high-temperature gasket makers are specialised anaerobic sealants designed to withstand the rigorous conditions of high-temperature environments. The single-component sealant provides a durable, effective solution for sealing rigid flange faces on transmissions and motor casings, making them an indispensable tool in automotive and industrial applications.

Features and Benefits
•	Single-component formula simplifies the application process with no mixing required, for clean and efficient use
•	Offers a modern solution to traditional gaskets, reducing inventory needs and potential for gasket failure
•	Instant seal effectively fills all voids, ensuring a tight seal immediately upon application
•	Once applied and cured, it does not require further tightening, maintaining a strong bond even under thermal expansion
•	High resistance to solvents withstands exposure to common automotive and industrial solvents
•	Resists high pressure when fully cured, ensuring the seal holds without leaks

Gasket Maker 50ml

These medium-strength flexible gasketing products are specially designed anaerobic sealants that cure in the absence of air between close-fitting metal parts. They are optimal for applications requiring reliable sealing and bonding properties, providing enhanced durability and resistance against mechanical and chemical stresses.

Features and Benefits
•	Replaces conventional gaskets, reducing the need for stockpiling various gasket sizes
•	Excellent instant seal effectively fills all voids for a robust seal
•	No need for retorquing, reducing maintenance time and effort
•	High resistance to solvents ensures durability in harsh chemical environments
•	High-pressure resistance maintains sealing integrity under extreme pressures
•	Quick setting times expedite assembly processes

Flexible Gasket 50ml

Bondloc B222 Screwlock is a Thixotropic anaerobic threadlocker of low strength designed for easy disassembly of treated components. B222&rsquos Anaerobic nature allows it to cure only when confined between metal parts. Applications include all small fasteners, where vibration loosening prevention and non-leakage through threaded fastening is required. Ideal on small set screws, brass and most types of small threaded nuts, bolts, screws, hex and slot driven components including keyed fasteners etc. Specifications Resin Dimethacrylate Colour Purple White tint Cure speed with Activator & lt15 mins @ 20C Cure speed without Activator 15 minutes Viscosity- Brookfield Sp3 @ 20rpm 1200 cps (thixo), Sp3 @ 20rpm 5000cps Gap Fill/Max Threadform 0.5mm/M36 Flash Point & gt100C Shelf Life 12 months @ 20C Specific Gravity 1.06 Cured performance Full Cure Time 12 hours @ 20C Typical Strength ISO 10964 6Nm M10&rsquos Range of Strength Breakaway 4Nm up to 12Nm, Prevailing 2Nm up to 6 Nm DIN 54454 Breakloose 10Nm max 20Nm DIN 54454 Prevailing 6Nm up to 20Nm Bondloc Screwlock Low Strength Threadlocker Size 50ml.

B222 Screwlock Low Strength Threadlocker 50ml BONB22250

Bondloc B638 Retainer is designed to give high strength retention under cyclic loading. It can retain its full strength and not suffer fatigue under load stress. It is a cylindrical parts supplement, suited to structural components such as cylindrical parts under dynamic load, keys, splines, even structural tubing with close tolerance fit. Specifications Resin Urethane Acrylate. Colour Green. Fixture Speed No Activator 5 mins. Fixture Speed With Activator & lt5 mins. Viscosity 2500 cps. Gap fill 0.2mm. Flash Point & gt85C. Shelf Life 12 months min. Specific Gravity 1.08. Max Operating Temperature -55C to + 150C. Cured Performance Full Cure Time 24 hours. Static shear strength 30 N/mm. Bondloc high strength retaining Compound. Size 10ml.

B638 High Strength Retainer 10ml BONB63810

These B641 medium-strength retainers are specially formulated retaining compounds designed to bond cylindrical fittings while allowing for their disassembly when needed, making them particularly valuable for applications that require regular maintenance or repair.

Features and Benefits
•	Medium strength formula provides a secure hold yet allows for disassembly without excessive force, preserving component integrity
•	Prevents the relative movement between interfacing parts, enhancing the efficiency of mechanical transmissions
•	Fretting corrosion prevention protects against the wear and tear that can occur at the contact points of tight-fitting parts
•	Environmental corrosion sealing shields metal surfaces from corrosive elements, prolonging their lifespan
•	Consistency in load transmission ensures that mechanical forces are evenly distributed across the bonded area, maintaining the functional performance of the assembly

Bearing Retainer 50ml

These high-strength, high-viscosity threadlockers are thixotropic adhesives designed to secure large threaded fasteners, greater than M26 or M27, against loosening due to vibrations. These threadlockers are ideal for heavy machinery and industrial applications where large bolts and screws are prevalent, and reliability is critical under dynamic conditions.

Features and Benefits
•	Single-component design allows for easy and clean application, simplifying the assembly process without the need for mixing
•	High strength and viscosity formula offers robust bonding capabilities, particularly suitable for larger and coarse threads that experience high stress
•	Effectively secures fasteners against the forces of vibration and shock that might otherwise lead to mechanical failure
•	Leak and corrosion prevention protects threaded joints from environmental factors that can cause degradation
•	Reduces the need for mechanical lock systems, such as washers and nuts, cutting down on inventory and maintenance costs
•	Increases the tightness of the joint, improving its load-bearing capacity and overall safety

Threadlock Green 50ml

These B542 medium-strength thread sealant offers a reliable solution for locking and sealing metal pipes and fittings, specifically designed to handle the challenges in hydraulic and pneumatic systems. The anaerobic formula ensures a fast cure and medium-strength bonding, making them ideal for fine threads that require durable sealing without compromising ease of disassembly.

Features and Benefits
•	Single-component sealant is easy to apply, ensuring a clean process without the need for mixing
•	Non-creeping, non-shrinking formula maintains the original fitting dimensions and does not block or disrupt the system operation
•	Specially formulated to withstand the rigours of vibration and shock, preventing loosening and leakage
•	Corrosion and galling protection safeguards threaded areas from environmental elements and wear, enhancing the longevity of the fittings

Hydraulic Thread Sealant 50ml

These penetrating threadlockers are medium to high-strength adhesives specially formulated for securing pre-assembled fasteners. The low viscosity composition allows for capillary action, enabling the threadlockers to wick between connected threads effortlessly, eliminating the need to disassemble parts before application. 

Features and Benefits
•	Capillary action penetrates threads without prior disassembly
•	Ensures mechanical integrity and leak-proof connections
•	Corrosion resistance protects metal parts from corrosion, extending their lifespan
•	Vibration resistance maintains fastening strength even in high-vibration environments
•	Increases friction between threads, enhancing the tightness of the connection

Penetrating Threadlock Green 50ml

WL43 are versatile, oil-tolerant nutlocks designed for locking and sealing threaded fasteners, such as gearbox bolts, driveshafts, and bearing cover cap screws. These nutlocks are particularly beneficial in environments where the fasteners may be exposed to oil, thanks to their excellent oil tolerance and high-temperature resistance.

Features and Benefits
•	High oil tolerance reduces the need for surface cleaning before application
•	Capable of withstanding temperatures from -55˚C to +180˚C, ideal for applications involving high thermal exposure
•	Offers a breakaway strength on steel of at least 20Nm, providing robust resistance against loosening
•	Cures in under 5 minutes with an activator, with a full cure achieved in 24 hours, minimizing downtime

Browse our original Bondloc products in Retainers & Threadlockers

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