Premium Threadlocker Manufacturer & Global Supplier
High-performance anaerobic adhesives engineered for extreme industrial sealing and locking. Direct from the source, delivering unmatched reliability for your assembly lines.
What Is Threadlocker?
Threadlocker is an adhesive used on threaded fasteners such as bolts, screws, nuts and studs to help prevent loosening caused by vibration, shock, thermal cycling or leakage. Most liquid threadlockers are anaerobic adhesives, which means they cure between close-fitting metal threads when air is excluded and metal ions are present.
Prevents Vibration Loosening
Helps keep bolts, screws and nuts secure in machinery, vehicles and equipment.
Fills Thread Gaps
Liquid threadlocker fills the small space between male and female threads before curing.
Provides Controlled Strength
Low, medium and high strength grades can be selected according to disassembly needs.
Can Seal Threads
Selected formulas can help reduce leakage and corrosion inside threaded assemblies.
Important: Threadlocker is not just "glue for screws." It should be selected by thread size, fastener material, strength requirement, temperature, oil contamination, application method and future disassembly needs.
Threadlocker Product Range
The table below is quick selection guide. Final viscosity, strength, fixture time, full cure time and temperature range should be confirmed by TDS review and customer testing.
| Product Type | Model | Color | Strength | Viscosity(mPa·s) | Typical Thread Size | Removal Method | Best For |
|---|---|---|---|---|---|---|---|
| Low Strength | TL-222 | Purple | Low | 1,200 - 5,000 | Small screws / fine threads | Hand tools | Electronics screws, small machinery screws, instrument screws, adjustment fasteners. |
| Medium Strength | TL-242 | Blue | Medium | 1,300 - 3,000 | General bolts and nuts | Hand tools | Automotive repair, motorcycles, bicycles, machinery, pumps, tools, furniture, equipment maintenance. |
| Oil-Tolerant Med Strength | TL-243 | Blue | Medium | 1,300 - 3,000 | General metal fasteners | Hand tools | Automotive repair, motorcycles, bicycles, machinery, pumps, tools, furniture, equipment maintenance. |
| High Strength | TL-271 | Red | High | 400 - 600 | Larger bolts, studs | Heat may be required | Studs, large bolts, press fits, heavy machinery, frames, engine parts and high-vibration assemblies. |
| High Temperature | TL-272 | Red | High | 400 - 600 | Large bolts / high heat | Heat may be required | Studs, large bolts, press fits, heavy machinery, frames, engine parts and high-vibration assemblies. |
| Wicking Threadlocker | TL-290 | Green | Med-High | 20 - 55 | Pre-assembled fasteners | Depends on formula | Set screws, electrical connectors, pre-assembled bolts, inspection and repair work. |
Selection Conclusion: Choose purple for small screws, blue for serviceable general fasteners, red for high-strength or permanent assemblies, and green when the fastener is already assembled and a wicking formula is needed.
Threadlocker Applications by Industry
Match the right strength, viscosity, and packaging to your specific B2B assembly or maintenance scenario.
Automotive Aftermarket
Problem: Bolts loosen due to vibration, heat cycling and repair service conditions.
Direction: Blue medium strength for serviceable fasteners; red high strength for permanent assemblies.
Motorcycle & Bicycle
Problem: Vibration loosening on brake hardware, frame parts, and adjustment screws.
Direction: Blue medium strength or purple low strength depending on fastener size.
Industrial Machinery
Problem: Shock, vibration and torque changes cause threaded joints to loosen.
Direction: Blue, red or high-temperature threadlocker according to thread size and disassembly need.
Power Tools & Equip.
Problem: Repeated vibration and impact during operation.
Direction: Medium strength or high strength threadlocker depending on service requirement.
Electronics & Inst.
Problem: Small screws need anti-loosening but must remain serviceable.
Direction: Purple low strength threadlocker.
Pre-Assembled Parts
Problem: Fasteners are already assembled and cannot be removed before application.
Direction: Green wicking grade threadlocker.
How to Choose the Right Threadlocker
Follow this 6-step engineering logic to select the correct anaerobic adhesive for your project.
Confirm Thread Size
Small screws, general bolts and large studs require different strength and viscosity to properly fill the thread gap.
Define Removal Requirement
Choose low or medium strength if future disassembly is needed. Choose high strength when permanent locking is required.
Check Fastener Material
Anaerobic threadlockers work best on active metal threads. Stainless steel, plated metals, passive metals or plastic-related assemblies require special review.
Check Environment
Heat, oil contamination, vibration, shock, water, chemicals and corrosion exposure affect formula selection.
Choose Application Method
Liquid bottle, wicking grade, semi-solid stick, pre-applied patch or small repair kit packaging can be selected by use case.
Review TDS & Test
Confirm strength, viscosity, fixture time, full cure time and compatibility before bulk order or private label packaging.
Threadlocker vs Thread Sealant vs Anti-Seize
Avoid common purchasing mistakes by understanding the difference between these three distinct thread chemicals.
| Feature | Threadlocker | Thread Sealant | Anti-Seize |
|---|---|---|---|
| Main Function | Locks threaded fasteners and helps prevent loosening from vibration | Seals threaded pipe fittings to help prevent fluid or gas leakage | Prevents galling, seizing and corrosion for future disassembly |
| Cure Type | Usually anaerobic cure on metal threads | Usually anaerobic or paste sealant depending on formula | Non-curing paste |
| Typical Use | Bolts, screws, nuts, studs and mechanical fasteners | Pipe fittings, hydraulic fittings, pneumatic fittings | Exhaust bolts, spark plugs, wheel hubs, stainless steel fasteners |
| Disassembly | Depends on strength: low, medium, high | Usually serviceable depending on formula | Designed to support easier future disassembly |
| Not For | Plastic fasteners unless formula is specifically reviewed | Fasteners needing locking strength only | Fasteners requiring locking or vibration resistance |
Why Are Anaerobic Bottles Never Full?
A common question from our industrial partners is why threadlocker and retaining compound bottles appear only half full. This is not a filling error, but a critical scientific requirement to maintain adhesive stability.
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Oxygen as a Stabilizer
Anaerobic adhesives cure in the absence of air. The large air gap provides the necessary oxygen to keep the liquid stable and prevent premature hardening during storage.
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Guaranteed Volume
A standard 50ml product is intentionally packaged in a 100ml bottle. You always receive the exact net volume specified, ensuring full value for your production line.
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Thermal Expansion Safety
The extra headroom accommodates pressure changes and thermal expansion during global transit, preventing leaks and ensuring product integrity upon arrival.
How to Apply Threadlocker Correctly
Standard application steps for liquid threadlocker. This information can also be adapted for your private label packaging instructions.
Clean the Threads
Remove oil, grease, dirt and loose contamination from the male and female threads.
Allow to Dry
The thread surfaces should be dry before application for stable curing and bonding.
Apply to Area
Apply a few drops to the thread area where the nut or hole will engage. Do not overapply.
Assemble
Assemble parts and tighten according to the required torque or engineering instruction.
Allow Cure Time
Respect fixture time before handling and allow full cure time according to the TDS.
Application Warnings
Do NOT apply regular anaerobic threadlocker to plastic parts or polymer-coated threads without technical review. Do not use too much product. Do not disturb the joint during curing unless the TDS allows repositioning.
Threadlocker OEM & ODM Manufacturing
Morelic delivers end-to-end threadlocker manufacturing solutions. From specialized anaerobic formulations to shelf-ready packaging, we empower your brand with high-performance thread locking and sealing compounds trusted by industries worldwide.
Anaerobic Formulation
Torque & Viscosity Tuning
Precision control of breakaway/prevailing torque, viscosity, thixotropy, and cure speeds for all strength grades.
Performance Equivalents
Drop-in replacements engineered to match or exceed the performance of leading global threadlocker brands.
Harsh Environment Specs
Advanced formulations for oil tolerance, high-temperature resistance, and rapid curing on inactive metals.
Packaging & Private Labeling
Industrial & Retail Sizes
Standard 1ml, 2ml, 5ml, 10ml, 50ml, 250ml accordion bottles, precision droppers, and large-scale bulk totes.
Custom Brand Identity
Full-service private labeling, including screen printing, chemical-resistant labels, and custom bottle colors.
Market-Ready Solutions
Compliance-ready packaging designed for automotive aftermarket, MRO distribution, and hardware retail.
Industrial Grade Manufacturing
Partner with a 15-year veteran in anaerobic adhesives for reliable, high-volume threadlocker production and global compliance.
Why Partner with Morelic?
As a direct manufacturer, we provide unparalleled control over quality, formulation, and delivery times. We empower global brands with robust lubrication & Adhesive solutions tailored to their exact specifications.
15 Years Experience
Servicing 30+ industries with 5000+ successful client cases.
Custom Formulation
Tailored grease formulas & small-pack OEM/ODM capabilities.
Global Compliance
Meeting international standards by using imported premium raw PFPE oil.
Rapid Delivery
Advanced testing & multiple high-speed filling machines ensure fast turnaround.
Threadlocker Questions Buyers Often Ask
Technical and procurement answers for B2B buyers.
What is threadlocker?
What is threadlocker used for?
What is the difference between blue and red threadlocker?
What is green threadlocker used for?
What is purple threadlocker used for?
Can threadlocker be used on plastic?
How long does threadlocker take to cure?
Can threadlocker be removed?
Can Morelic make private-label threadlocker?
Can Morelic develop a Loctite alternative threadlocker?
Start Your Threadlocker Project in 3 Steps
Send Fastener Details
Tell us the thread size, metal material, strength requirement, temperature, vibration level, oil condition and removal need.
Confirm Formula & Packaging
Morelic recommends low, medium, high, wicking or high-temperature formula direction with suitable bottle and label options.
Test Samples Before Bulk Order
Samples can be prepared for strength testing, fixture time, application feel, bottle sealing, label review and customer testing.
Need Threadlocker for Your Brand or OEM Assembly Project?
Send us your fastener application, strength requirement, bottle size, target market and private-label packaging needs. Morelic will help you confirm a suitable threadlocker formula and prepare samples for testing.
Email: [email protected]
Phone/WhatsApp: +86 195 1520 4360
Address: No. 8, Xintang Village, Longhua District, Shenzhen, Guangdong, China