LOCTITE® 263 High Strength Threadlocker | 10ml | 263-10 | Permanent Thread Locking Compound

Red High-Strength Anaerobic Threadlocker for Bolts, Nuts, Studs and Heavy-Duty Metal Fasteners

Supply Solutions Group supplies LOCTITE® 263 High Strength Threadlocker – 10ml (263-10) to organisations operating across manufacturing, engineering, mining, automotive, power generation, oil and gas, maintenance and industrial workplaces throughout Australia.

LOCTITE 263 is a professional high-strength anaerobic threadlocking compound designed for the permanent locking and sealing of threaded metal fasteners.

Manufactured by Henkel, LOCTITE 263 cures when confined in the absence of air between close-fitting metal surfaces.

Once cured, it helps prevent threaded fasteners from:

• Loosening

• Leaking

• Backing off

• Moving under shock

• Moving under vibration

The product is particularly suited to heavy-duty applications where high locking strength is required.

Henkel specifically identifies applications such as:

• Studs into motor housings

• Nuts onto studs in pump housings

• Heavy-duty threaded fasteners

• Permanent mechanical assemblies

LOCTITE 263 is supplied as a red, low-viscosity liquid.

It is a one-component formulation, meaning no mixing is required before application.

The product uses anaerobic acrylic / dimethacrylate ester technology and begins curing after assembly when oxygen is excluded from the threaded joint.

LOCTITE 263 provides reliable performance on both active and passive metal substrates.

Compatible surfaces include appropriate:

• Steel

• Brass

• Copper

• Stainless steel

• Plated steel

• Other suitable metal fasteners

A key benefit of LOCTITE 263 is its primerless performance on passive metals.

Henkel states that the product works on stainless steel and plated surfaces without requiring primer under normal application conditions.

LOCTITE 263 also provides useful oil tolerance.

The formulation tolerates minor contamination from common industrial fluids such as:

• Cutting fluids

• Lubricating oils

• Anti-corrosion fluids

• Protective fluids

For best performance, heavily contaminated fasteners should still be cleaned before application.

Henkel specifies a typical fixture time of approximately:

10 minutes

under its stated conditions.

The product also provides high-temperature performance, with a manufacturer-listed service temperature range of approximately:

-55°C to 180°C

LOCTITE 263 is classified as a high-strength permanent threadlocker.

Fasteners locked with the cured product generally require localised heat for disassembly.

Henkel's current Technical Data Sheet recommends heating the nut or bolt to approximately 250°C before dismantling while hot where disassembly is required.

The convenient 10ml format is particularly suitable for maintenance personnel, mechanics, engineers and technicians carrying out intermittent high-strength fastening work.

This listing contains 1 × 10ml LOCTITE 263 High Strength Threadlocker – 263-10.

As an Indigenous-owned industrial supplier and procurement partner, Supply Solutions Group provides LOCTITE threadlockers, retaining compounds, flange sealants, thread sealants, primers, activators, lubricants and industrial maintenance consumables backed by responsive customer service, procurement support and Australia-wide business supply capability.

Product Type

• Product Type: High Strength Threadlocker

• Brand: LOCTITE®

• Manufacturer: Henkel

• Product: LOCTITE 263

• Product Reference: 263-10

• Pack Size: 10ml

• Colour: Red

• Technology: Acrylic

• Chemical Type: Dimethacrylate Ester

• Cure Type: Anaerobic

• Components: One Component

• Viscosity: Low

• Strength: High

• Primerless: Yes

• Oil Tolerant: Yes

• UV Fluorescent: Yes

• Typical Fixture Time: 10 Minutes

• Service Temperature: Approx. -55°C to 180°C

• Primary Application: Permanent Thread Locking

• Disassembly: Heat Required

Key Features

• Genuine LOCTITE® industrial threadlocker

• Manufactured by Henkel

• LOCTITE 263

• 10ml pack

• High-strength formulation

• Permanent threadlocking

• Red liquid

• Low viscosity

• One-component formulation

• No mixing required

• Anaerobic curing technology

• Primerless performance

• Works on active metals

• Works on passive metals

• Suitable for stainless steel

• Suitable for plated fasteners

• Suitable for brass

• Suitable for copper

• Suitable for steel

• Oil tolerant

• Tolerates minor cutting-fluid contamination

• Tolerates minor lubricating-oil contamination

• Tolerates minor anti-corrosion-fluid contamination

• Tolerates minor protective-fluid contamination

• Prevents loosening from vibration

• Helps prevent leakage

• Typical fixture time around 10 minutes

• High-temperature performance

• Service temperature approximately -55°C to 180°C

• Fluorescent under UV light

• Ideal for heavy-duty fastening

• Suitable for studs

• Suitable for nuts and bolts

• Suitable for motor housings

• Suitable for pump housings

• Heat required for normal disassembly

Technical Specifications

Specification Details
Brand	LOCTITE®
Manufacturer	Henkel
Product	263
Product Type	High Strength Threadlocker
Product Reference	263-10
Pack Size	10ml
Technology	Acrylic
Chemical Type	Dimethacrylate Ester
Appearance	Red Liquid
Fluorescence	Positive Under UV Light
Components	One Component
Viscosity	Low
Typical Brookfield Viscosity @ 25°C	Approx. 500 mPa·s
Typical Cone & Plate Viscosity @ 25°C	Approx. 450 mPa·s
Specific Gravity @ 23°C	Approx. 1.1
Cure Type	Anaerobic
Secondary Cure	Activator
Strength	High
Typical Fixture Time	Approx. 10 Minutes
Service Temperature	Approx. -55°C to 180°C
Breakaway Torque – M10 Steel	Approx. 33 N·m
Prevail Torque – M10 Steel	Approx. 33 N·m
Breakaway Torque – M16 Steel	Approx. 90 N·m
Compressive Shear Strength	≥9.0 N/mm²
Primerless on Passive Metals	Yes
Oil Tolerant	Yes
Disassembly	Localised Heat Required
Recommended Disassembly Heat	Approx. 250°C
Optimal Storage	8°C to 21°C

Typical Applications

• Stud locking

• Bolt locking

• Nut locking

• Permanent threaded assemblies

• Motor housings

• Pump housings

• Heavy machinery

• Industrial equipment

• Automotive assemblies

• Transmission components

• Heavy equipment maintenance

• Plant maintenance

• Machinery assembly

• Production equipment

• Mining equipment

• Power-generation equipment

• Industrial manufacturing

• Mechanical repair

• Workshop servicing

Suitable Industries

• Manufacturing

• Engineering

• Mining and resources

• Automotive

• Power generation

• Oil and gas

• Industrial maintenance

• Heavy equipment

• Mechanical workshops

• Equipment manufacturing

• Fluid processing

• Fluid power

• Remanufacturing

• Transport

• Utilities

• Infrastructure

• Maintenance and repair

• Trades and contracting

Why Choose LOCTITE® 263 High Strength Threadlocker?

Threaded fasteners can loosen during service because of:

• Vibration

• Shock

• Repeated loading

• Thermal cycling

• Machinery operation

Mechanical locking devices can help address these conditions, but anaerobic threadlockers provide another method by filling the microscopic clearances between mating threads.

LOCTITE 263 enters these spaces while liquid.

After assembly, oxygen is excluded and the product cures into a strong thermoset material.

This creates a locked and sealed threaded connection.

Designed for Permanent High-Strength Locking

Henkel classifies LOCTITE 263 as:

High Strength

The product is designed for applications where fasteners are not expected to require frequent routine removal.

Typical examples include:

• Studs

• Large bolts

• Heavy-duty mechanical assemblies

• Motor housings

• Pump housings

Where regular disassembly is required, a medium-strength threadlocker may be more appropriate.

Heavy-Duty Applications

Henkel specifically positions LOCTITE 263 for heavy-duty applications.

Examples include:

• Studs into motor housings

• Nuts onto studs in pump housings

• Industrial equipment fasteners

• High-load threaded assemblies

This makes it suitable for demanding manufacturing and maintenance environments.

Primerless on Passive Metals

LOCTITE 263 provides robust curing performance on both active and passive metals.

Henkel identifies performance on:

• Brass

• Copper

• Stainless steel

• Plated surfaces

The product does not normally require primer on these surfaces.

An activator may still be used where cure speed is unacceptably slow or where large gaps are present.

Suitable for Stainless Steel

Stainless steel is a passive metal that can slow anaerobic curing with some products.

LOCTITE 263 is formulated to cure effectively on stainless steel without requiring routine primer application.

This makes it useful for:

• Stainless bolts

• Stainless nuts

• Stainless studs

• Stainless mechanical assemblies

Oil-Tolerant Formulation

LOCTITE 263 tolerates minor contamination from various industrial oils.

Henkel specifically identifies tolerance to:

• Cutting oils

• Lubrication fluids

• Anti-corrosion fluids

• Protective fluids

This can be particularly useful when working with new fasteners supplied with light protective oil coatings.

For maximum consistency, excessive contamination should still be removed.

Typical 10-Minute Fixture Time

Henkel specifies a typical fixture time of approximately:

10 minutes

Fixture time indicates when the product has developed enough initial strength for appropriate handling under the specified conditions.

It does not mean the product has reached full cure.

Full curing develops progressively over time.

High-Temperature Performance

Henkel lists an application / service temperature range of approximately:

-55°C to 180°C

This supports use across demanding machinery and industrial equipment exposed to elevated operating temperatures.

Actual suitability depends on the full service environment.

Tested Cold Performance

Henkel's current TDS notes that LOCTITE 263 has been tested to approximately:

-75°C

This does not change the manufacturer-listed general application temperature range, but it demonstrates retained performance under severe cold test conditions.

M10 Breakaway Torque

Henkel's current Technical Data Sheet specifies a typical breakaway torque after curing for 24 hours on M10 steel nuts and bolts of approximately:

33 N·m

This value is based on controlled laboratory testing according to ISO 10964.

Actual field performance depends on:

• Fastener size

• Fastener finish

• Assembly torque

• Thread condition

• Cure time

• Temperature

• Surface contamination

M16 Performance

The same TDS lists typical breakaway torque on M16 steel nuts and bolts of approximately:

90 N·m

This further demonstrates the high-strength characteristics of the product.

These test values are not direct assembly torque recommendations.

Always tighten fasteners according to equipment-manufacturer requirements.

UV Fluorescence

LOCTITE 263 fluoresces under UV light.

This can assist:

• Production inspection

• Assembly verification

• Quality control

• Application confirmation

UV inspection can help confirm whether threadlocker has been applied before final assembly.

Application Guidance

For best results:

1. Clean internal and external threads where required.

2. Allow cleaned parts to dry.

3. Use an activator if cure speed is unacceptably slow.

4. Shake the product thoroughly before use.

5. Apply several drops to the thread-engagement area.

6. For blind holes, apply product into the lower internal threads.

7. Assemble the components.

8. Tighten to the equipment manufacturer's specified torque.

9. Allow adequate curing time before demanding service.

Always consult the current Henkel Technical Data Sheet for detailed procedures.

Through-Hole Applications

For through-hole assemblies, Henkel recommends applying several drops onto the bolt around the:

Nut engagement area

This allows the product to spread through the mating threads during tightening.

Blind-Hole Applications

For blind holes, Henkel recommends applying several drops into the:

Lower third of the internal threads or bottom of the blind hole

Applying product only to the bolt may cause trapped air to push material away during insertion.

Activator Use

LOCTITE 263 normally provides robust primerless curing.

However, where cure speed is too slow or larger permissible gaps are present, Henkel recommends an appropriate activator.

Current TDS testing includes activators such as:

• LOCTITE SF 7471

• LOCTITE SF 7649

• LOCTITE SF 7088

• LOCTITE SF 7091

Always confirm activator compatibility and availability for the specific application.

Disassembly

LOCTITE 263 is designed for permanent high-strength locking.

Henkel recommends applying localised heat to approximately:

250°C

to the nut or bolt where disassembly is required.

The fastener should then be dismantled while hot using suitable tools and safety procedures.

Important Heat Safety

Heating fasteners to approximately 250°C introduces significant burn, fire and equipment-damage hazards.

Before attempting heated disassembly:

• Confirm the surrounding equipment can tolerate the temperature

• Remove combustible materials

• Wear suitable heat-resistant PPE

• Follow workplace hot-work procedures where applicable

• Avoid heating pressurised or hazardous systems

• Follow equipment-manufacturer instructions

Plastic Compatibility

Henkel states that LOCTITE 263 is not normally recommended for plastics, particularly thermoplastics where stress cracking may occur.

Confirm compatibility before use on:

• Plastics

• Composite materials

• Non-metallic fasteners

The product is primarily intended for metal threaded assemblies.

Oxygen & Oxidising Systems

LOCTITE 263 is not recommended for use in:

• Pure oxygen systems

• Oxygen-rich systems

• Chlorine service

• Other strong oxidising environments

Use only products specifically approved for those specialised applications.

Storage

Henkel recommends optimal storage at approximately:

8°C to 21°C

For best product condition:

• Store in the original unopened container

• Keep in a dry location

• Keep away from excessive heat

• Keep the cap closed

• Avoid contamination

• Observe the expiry date on the package

Important Safety Information

LOCTITE 263 is an industrial chemical product.

Users should:

• Read the current product label

• Read the current Safety Data Sheet

• Avoid eye contact

• Avoid unnecessary skin contact

• Use suitable workplace ventilation

• Wear PPE identified by the SDS and workplace risk assessment

• Wash hands after use

• Store appropriately

• Dispose of waste according to applicable requirements

Why Buy from Supply Solutions Group?

Supply Solutions Group is an Indigenous-owned Australian supplier of industrial adhesives, threadlockers, retaining compounds, sealants, lubricants and maintenance products, providing LOCTITE products backed by procurement support and Australia-wide business supply capability.

Benefits of Partnering with Supply Solutions Group

• Australia-wide business supply capability

• Indigenous-owned and operated business

• Genuine LOCTITE product supply

• Henkel industrial products

• High-strength threadlockers

• Medium-strength threadlockers

• Retaining compounds

• Thread sealants

• Flange sealants

• Gasket products

• Engineering adhesives

• Industrial lubricants

• Anti-seize products

• Automotive maintenance products

• Mining maintenance consumables

• Manufacturing consumables

• Mechanical workshop supplies

• Procurement support services

• Trade account options

• Bulk purchasing solutions

• Product sourcing assistance

• Responsive customer service

• Ongoing commercial supply arrangements

Frequently Asked Questions

What is LOCTITE 263?
LOCTITE 263 is a red, high-strength anaerobic threadlocker designed for permanent locking and sealing of threaded metal fasteners.

How much product is supplied?
This listing contains 1 × 10ml pack.

What is the product reference?
This listing uses 263-10.

What colour is LOCTITE 263?
Henkel specifies red.

Is LOCTITE 263 high strength?
Yes. Henkel classifies it as a high-strength threadlocker.

Is LOCTITE 263 permanent?
Yes. It is designed for permanent locking of threaded fasteners.

Can LOCTITE 263 be removed?
Yes, but Henkel recommends localised heat for disassembly because of its high strength.

How hot does it need to be for disassembly?
Henkel's TDS recommends heating the fastener locally to approximately 250°C and dismantling while hot.

Does LOCTITE 263 need a primer?
Normally no. Henkel describes it as primerless and suitable for both active and passive metals.

Can it be used on stainless steel?
Yes.

Can it be used on plated fasteners?
Yes. Henkel specifically identifies plated surfaces as suitable.

Can it be used on brass and copper?
Yes. Brass and copper are active metals on which LOCTITE 263 cures effectively.

Does LOCTITE 263 tolerate oil?
Yes. It tolerates minor contamination from cutting, lubricating, anti-corrosion and protective oils.

Should oily fasteners still be cleaned?
For best and most repeatable performance, excessive contamination should be removed.

How quickly does LOCTITE 263 fixture?
Henkel's current product listing specifies a typical fixture time of approximately 10 minutes.

What temperature range is LOCTITE 263 suitable for?
Henkel lists approximately -55°C to 180°C.

What is the breakaway torque on an M10 steel fastener?
The current TDS lists a typical value of approximately 33 N·m after 24 hours of cure under the stated test conditions.

Is 33 N·m the recommended bolt-tightening torque?
No. It is a laboratory breakaway-torque result, not an installation torque specification. Follow the equipment manufacturer's fastening torque requirements.

What is the typical breakaway torque on M16 steel fasteners?
Henkel lists approximately 90 N·m under the stated test conditions.

Does LOCTITE 263 prevent vibration loosening?
Yes. Prevention of loosening caused by shock and vibration is one of its primary functions.

Does it seal threads as well as lock them?
Yes. It is designed to both lock and seal threaded metal fasteners.

Is it suitable for studs?
Yes. Henkel specifically identifies studs into motor housings as a typical heavy-duty application.

Can it be used on pump housings?
Yes. Henkel lists nuts onto studs in pump housings as an example application.

Is LOCTITE 263 fluorescent?
Yes. The uncured product fluoresces under UV light for inspection.

Is it suitable for plastic fasteners?
It is primarily designed for metal fasteners and is not normally recommended for plastics because some thermoplastics may stress crack.

Can it be used in oxygen systems?
No. Henkel does not recommend it for pure oxygen, oxygen-rich systems, chlorine or other strong oxidising materials.

How should LOCTITE 263 be stored?
Henkel recommends optimal storage at approximately 8°C to 21°C in the unopened original container.

Can Supply Solutions Group supply other LOCTITE threadlockers?
Yes. Supply Solutions Group can assist with LOCTITE 222, 243, 248, 262, 263, 270 and other threadlocking products, subject to availability.

Can Supply Solutions Group provide larger quantities?
Yes. Bulk and ongoing procurement arrangements are available for manufacturers, mine sites, engineering businesses, automotive workshops and industrial maintenance operations.