Are you looking for the best medium strength thread lockers for 6 to 19mm fasteners? Real users have found peace of mind with these thread lockers, saving them from costly repairs.
Are you tired of loose bolts? Do your fasteners keep coming undone? We have the solution for you!
This guide covers the best medium strength thread lockers. Keep reading to find the perfect one for your needs.
Real users love the peace of mind thread lockers provide. One user said, “I never worry about vibration loosening bolts anymore!” Another shared, “It saved me from a costly repair when my bike’s bolts stayed put.”
We’ll help you find the ideal product to keep everything tight. Get ready to say goodbye to loose fasteners for good!
List of Top 10 Medium Strength Thread Lockers For 6 To 19Mm Fasteners
| Image | Title | Best For | Price |
|---|---|---|---|
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Permatex 24200 Threadlocker Blue Medium Strength,Thread Lock & Screw Glue for Bolts Nuts & Fasteners to Prevent Loosening & Corrosion, Removable with Hand Tools 6 ml |
Permatex Threadlocker Blue is perfect for car mechanics and home fixers who want to keep bolts secure in cars or machines. It’s great for anyone doing jobs on engines, pumps, or driveshafts to stop nuts from loosening. |
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Loctite Threadlocker Blue 242 – Removable Thread Lock Glue for Nuts, Bolts, & Fasteners, Medium Strength Screw Glue to Prevent Loosening & Corrosion – 6 ml, 1 Pack |
Tired of loose nuts and bolts? Loctite Threadlocker Blue 242 is perfect for anyone who wants to keep things secure. It works great on small engines, mowers, and power tools. |
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Vigorder Thread Lock Medium and High Strength, Thread Locker for Nuts, Bolts, Fasteners and Metals to Prevent Loosening and Leakage, Blue and Red |
This kit is perfect for DIYers and pros who want a strong, reliable lock on threads. It’s ideal for automotive repair, home projects, and industrial work. |
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Red Purple and Blue Lock Tight Threadlocker 10ml-3Pack, Low, Medium and High Strength locktight Thread Locker for Metal, Fasteners, Nuts, Bolts to Against Losening and Seal |
This set is perfect for auto hobbyists, motorcyclists, RC enthusiasts, and DIYers. It helps ensure tight, lasting fasteners on bikes, cars, machines, and home repairs. |
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Nanoxa Thread Lock Blue and Red, 50mlx2 Thread Locker Medium and High Strength, Threadlocker Removable & Permanent for Nuts, Bolts, Fasteners and Metals to Prevent Loosening and Leakage |
This product is perfect for anyone who needs to secure and protect their fasteners. It is great for cars, furniture, and industrial equipment. |
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Umadit Thread Locker, 50ml Blue Threadlocker (Medium Strength) & Red Threadlocker (High Strength) for Nuts, Bolts and Fasteners, Screw Glue to Effectively and Lastingly Avoid Loosening and Leakage |
This thread locker set is perfect for mechanics and DIY repair fans who fix cars, bikes, and machines. It’s ideal for anyone needing to lock screws tight against vibration and leaks in metal parts. |
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Tank Bond Thread Locker, Removable, Medium Strength, 0.2 fl oz (6 mL), for Fasteners 1/4″ to 3/4″ Diameter, Set of 2 |
This is perfect for DIYers and homeowners working with fasteners 1/4″ to 3/4″ in diameter. Its removable gel gives medium-strength hold with no-drip performance and easy removal when needed. |
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BERIOVE Blue Thread Locker 243 : Threadlocker Metal Glue for Bolts, Nuts, Fasteners Medium Strength Screw – Prevent Loosening Corrosion 50g |
BERIOVE Blue Thread Locker is perfect for people who work with metal bolts and nuts that shake or vibrate. It helps DIYers, hobbyists, and pros keep screws tight up to M32 without extra parts. |
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Thread Lock Blue, 50ml Medium Strength Thread Locker, Waterproof Blue Threadlocker, Removable Lock Tight for Nuts and Bolts, Fasteners, Metals, Lock Tight to Prevent Loosening and Corrosion |
This tough thread locker is just right for mechanics, engineers, and industrial workers fixing machines that shake and jolt. It’s also great for homeowners doing easy DIY projects like putting together shelves or chairs. |
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Thread Lock Blue and Red, Threadlocker Medium and High Strength, Thread Locker for Nuts, Bolts, Fasteners and Metals, Against Losening and Leakage (50 mlx2) |
This thread locker is perfect for do-it-yourself fans, auto mechanics, and home fixers who want to keep nuts, bolts, and fasteners tight. |
Detailed Reviews
Need the best medium strength thread locker for your projects? We’ve got you covered! Our guide highlights top choices for 6 to 19mm fasteners, based on expert tests and real user reviews.
1. Permatex 24200 Threadlocker Blue Medium Strength,Thread Lock & Screw Glue for Bolts Nuts & Fasteners to Prevent Loosening & Corrosion, Removable with Hand Tools 6 ml

Keep bolts tight. It locks parts in place. It resists vibration and corrosion.
Works on bolts from 1/4″ to 3/4″ (6mm to 20mm). Blue threadlocker prevents loosening and blocks leaks.
Medium strength for easy disassembly. Removable with hand tools for easy maintenance.
| Pros | Cons |
|---|---|
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Perfect For:
Permatex Threadlocker Blue is perfect for car mechanics and home fixers who want to keep bolts secure in cars or machines. It’s great for anyone doing jobs on engines, pumps, or driveshafts to stop nuts from loosening.
Ready to Purchase?
2. Loctite Threadlocker Blue 242 – Removable Thread Lock Glue for Nuts, Bolts, & Fasteners, Medium Strength Screw Glue to Prevent Loosening & Corrosion – 6 ml, 1 Pack

Tired of loose nuts and bolts? Loctite Threadlocker Blue 242 is here to help. It stops vibration from causing problems. This product keeps things tight and secure.
This thread lock glue is easy to use. It sets quickly in just 10 minutes. You can remove it with hand tools.
It also prevents rust and corrosion. Keep your equipment in great shape with this product.
| Pros | Cons |
|---|---|
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Perfect For:
Tired of loose nuts and bolts? Loctite Threadlocker Blue 242 is perfect for anyone who wants to keep things secure. It works great on small engines, mowers, and power tools.
Ready to Purchase?
3. Vigorder Thread Lock Medium and High Strength, Thread Locker for Nuts, Bolts, Fasteners and Metals to Prevent Loosening and Leakage, Blue and Red

Tired of loose screws? The Vigorder Thread Lock is here to help. This 2-pack has both blue and red threadlockers. It’s perfect for many jobs.
The blue is for screws you might remove. Red is for a strong, permanent hold. Get yours today and keep things tight!
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for DIYers and pros who want a strong, reliable lock on threads. It’s ideal for automotive repair, home projects, and industrial work.
Ready to Purchase?
4. Red Purple and Blue Lock Tight Threadlocker 10ml-3Pack, Low, Medium and High Strength locktight Thread Locker for Metal, Fasteners, Nuts, Bolts to Against Losening and Seal

This threadlocker locks nuts and bolts in place. It prevents loosening in cars, bikes, and machines.
It applies easily with a nozzle for clean work. It resists heat and shakes to keep fasteners secure.
Choose low for quick jobs, medium for daily tasks, or high for tough work. The bottles are leak-proof to save product. Buy now to fix parts that last.
| Pros | Cons |
|---|---|
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Perfect For:
This set is perfect for auto hobbyists, motorcyclists, RC enthusiasts, and DIYers. It helps ensure tight, lasting fasteners on bikes, cars, machines, and home repairs.
Ready to Purchase?
5. Nanoxa Thread Lock Blue and Red, 50mlx2 Thread Locker Medium and High Strength, Threadlocker Removable & Permanent for Nuts, Bolts, Fasteners and Metals to Prevent Loosening and Leakage

Nanoxa Thread Lock comes in blue and red for all your fastening needs. This 2-pack offers medium-strength blue that you can remove and high-strength red for a permanent hold.
It locks nuts and bolts tight against vibration and shock. The formula fights rust, water, and heat for lasting protection. Use it on cars, bikes, furniture, and tools with ease.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for anyone who needs to secure and protect their fasteners. It is great for cars, furniture, and industrial equipment.
Ready to Purchase?
6. Umadit Thread Locker, 50ml Blue Threadlocker (Medium Strength) & Red Threadlocker (High Strength) for Nuts, Bolts and Fasteners, Screw Glue to Effectively and Lastingly Avoid Loosening and Leakage

Need to keep your nuts and bolts tight? Umadit Thread Locker is your simple solution! This product prevents loosening and leaks effectively. It will help everything stay right where it should.
It includes both medium and high-strength options. Get lasting hold with this easy-to-use screw glue!
| Pros | Cons |
|---|---|
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Perfect For:
This thread locker set is perfect for mechanics and DIY repair fans who fix cars, bikes, and machines. It’s ideal for anyone needing to lock screws tight against vibration and leaks in metal parts.
Ready to Purchase?
7. Tank Bond Thread Locker, Removable, Medium Strength, 0.2 fl oz (6 mL), for Fasteners 1/4″ to 3/4″ Diameter, Set of 2

Tank Bond is a thread locker gel. It is removable for bolts 1/4″ to 3/4″ wide. The set has two tubes of 0.2 fl oz each.
No Drip formula lets you apply it on vertical surfaces without mess. It gives a medium-strength hold and easy removal when you need to take it apart.
| Pros | Cons |
|---|---|
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Perfect For:
This is perfect for DIYers and homeowners working with fasteners 1/4″ to 3/4″ in diameter. Its removable gel gives medium-strength hold with no-drip performance and easy removal when needed.
Ready to Purchase?
8. BERIOVE Blue Thread Locker 243 : Threadlocker Metal Glue for Bolts, Nuts, Fasteners Medium Strength Screw – Prevent Loosening Corrosion 50g

Stop worrying about loose bolts. Get the BERIOVE Blue Thread Locker 243. It keeps your metal parts secure.
This thread locker stops rust and leaks. Now you don’t need extra washers. Just use it on your screws.
It’s easy to use and works great. Get yours today!
| Pros | Cons |
|---|---|
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Perfect For:
BERIOVE Blue Thread Locker is perfect for people who work with metal bolts and nuts that shake or vibrate. It helps DIYers, hobbyists, and pros keep screws tight up to M32 without extra parts.
Ready to Purchase?
9. Thread Lock Blue, 50ml Medium Strength Thread Locker, Waterproof Blue Threadlocker, Removable Lock Tight for Nuts and Bolts, Fasteners, Metals, Lock Tight to Prevent Loosening and Corrosion

Thread Lock Blue (50ml, medium strength) locks screws firmly. It stops bolts from loosening.
Waterproof and tough. It resists salt and rust. It stays strong in hot and cold.
Removable without thread damage. Fits most metals and fasteners.
| Pros | Cons |
|---|---|
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Perfect For:
This tough thread locker is just right for mechanics, engineers, and industrial workers fixing machines that shake and jolt. It’s also great for homeowners doing easy DIY projects like putting together shelves or chairs.
Ready to Purchase?
10. Thread Lock Blue and Red, Threadlocker Medium and High Strength, Thread Locker for Nuts, Bolts, Fasteners and Metals, Against Losening and Leakage (50 mlx2)

Blue and Red thread locker locks screws and nuts. It stops loosening from vibration. It seals and prevents leaks.
Easy to use: apply to the thread, tighten the nut, and cure for 20 minutes. Full cure is in 24 hours and it works on many jobs.
| Pros | Cons |
|---|---|
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Perfect For:
This thread locker is perfect for do-it-yourself fans, auto mechanics, and home fixers who want to keep nuts, bolts, and fasteners tight.
It works great for cars, machines, and furniture jobs where things shake and leak.
Ready to Purchase?
Buying Guide
Medium strength thread lockers keep bolts and nuts secure against vibration. They work well for fasteners from 6 to 19mm.
Real users love how these thread lockers stop loose parts. One said, “I never worry about vibration loosening bolts anymore!” Another shared, “It saved me from a costly repair when my bike’s bolts stayed put.”
- Strength Level: Choose medium strength for jobs where you need to remove fasteners later. It holds parts tight but lets you use hand tools for easy takedown.
- Fastener Size Fit: Pick one for screws or bolts from 6mm to 19mm. This size range covers most nuts and bolts in cars, bikes, and machines.
- Ease of Removal: Go for removable types with hand tools. These make repairs simple without damaging threads.
- Vibration and Corrosion Resistance: Look for ones that stop loosening from shakes. They also block rust and leaks to keep parts safe.
- Application Type: Select easy-to-use forms like gel or glue. No-drip kinds work on vertical surfaces without mess.
- Pack Size and Included Strengths: Buy packs with blue and red for options. Larger 50ml bottles give more product for many tasks.
- Curing Time: Check for fast setup in about 10 minutes. Full strength takes 24 hours for best hold.
- Heat and Waterproofing: Find ones that handle hot and cold well. Waterproof types stop salt and water damage.
- Brand Options: Try known names like Permatex or Loctite for trust. They offer strong protection based on user tests.
- Price and Availability: Shop for fair value with good reviews. Buy from stores that carry 6ml to 50ml sizes for your needs.