Permatex Medium Strength Threadlocker
Permatex Medium-Strength Threadlocker Blue is ideal for all nut and bolt applications ranging from 6mm to 20mm (1/4″ to 3/4″). This threadlocker eliminates the need for expensive lock nuts and lock washers by locking and sealing parts, preventing loosening due to vibration. It also protects threads from corrosion. Threadlocker Blue is easily removable with hand tools, making disassembly simple. (Mil-S-46163A, Type II, Grade N).
Overview



PX24210


PX24250
Additional Information
Additional Information
- Ideal for nut and bolt applications 6mm to 20mm
- Eliminates need for stocking expensive lock nuts and lock washers
- All-purpose, medium strength threadlocker
- Locks and seals while preventing parts loosening due to vibration
- Removable with hand tools for easy disassembly
Applications
Valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburettor studsContent loading..
How does Permatex improve repair reliability and performance?
Permatex automotive solutions are engineered to help ensure reliable, long‑lasting repairs by sealing leaks, preventing loosening caused by vibration, reducing wear and protecting critical components.
Backed by extensive testing, technical documentation and training resources, Permatex helps users complete repairs correctly the first time, improving performance, durability and confidence across automotive and mechanical repair tasks.
Who uses Permatex products?
Permatex products are used by professional automotive technicians, mechanics and trades, as well as experienced DIY car enthusiasts who demand reliable repair solutions.
Designed for both everyday vehicle maintenance and complex repairs, Permatex solutions are widely used across automotive, motorcycle, marine and heavy‑duty applications, making them a trusted choice in workshops, garages and racing environments worldwide.
Why do professionals trust Permatex for automotive repairs?
Permatex is a globally trusted brand known for high‑performance automotive repair and maintenance solutions. With over 100 years of innovation, Permatex has earned a strong reputation for products that professionals rely on to seal, secure and protect critical vehicle components.
The Permatex range includes industry‑leading gasket makers, sealants, threadlockers, adhesives and specialty maintenance products designed to perform in demanding workshop or on‑road conditions.
Available Sizes
Available Sizes

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Permatex® Ultra Synthetic ...

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