Permatex Threadlocker Medium Strength Blue Gel 10 g Twist Applicator — Non‑drip, Removable Seal for 6–25 mm Fasteners

Permatex 24010 Medium Strength Threadlocker Blue Gel is a non-drip gel adhesive that secures and seals fasteners from 6 mm to 25 mm while remaining removable with standard hand tools.

Designed for mechanics, technicians and DIYers who need a reliable threadlocker without mess, this medium-strength blue gel cures to form an adhesive seal that resists vibration and corrosion. The twist applicator dispenses gel precisely where needed, making overhead and vertical applications easy and reducing waste compared with liquid formulations. It replaces the need for specialty lock washers or nylon inserts in many common fastener jobs.

How does the gel format change application and control?

The gel consistency stays where you apply it, so you won’t get drips, runs or excess spread on adjoining surfaces. That control makes it simpler to target individual threads and reduces cleanup time after installation.

• Twist applicator tip for targeted bead placement
• Non-sag gel suitable for vertical and overhead use
• Less overspray and waste than liquid threadlockers
• Clear, even coating that cures to a tough adhesive

What size fasteners and applications is this product best for?

Formulated for nut and bolt assemblies from 1/4" to 1" (6 mm to 25 mm), this medium-strength threadlocker is versatile across many common automotive and equipment fasteners. It fills thread gaps and cures to prevent loosening from vibration while also protecting against corrosion.

• Valve cover and oil pan bolts
• Water pump and drive shaft bolts
• Rocker arm adjustment nuts and carburetor studs
• General-purpose fasteners within the specified size range

How strong is the bond and can the fasteners be removed later?

This is a medium-strength product: it secures assemblies during service but allows disassembly with conventional hand tools when required. Removal typically requires normal torque with hand wrenches or sockets; heat or specialty tools can assist for long-term or high-load assemblies.

• Locks and seals against vibration-induced loosening
• Removable with standard hand tools for maintenance
• Resists leakage and helps prevent thread corrosion
• Not intended for permanent, high-torque joints

How does this threadlocker compare to mechanical locking methods?

Unlike lock washers or nylon-insert nuts, the Permatex gel secures the entire threaded assembly by filling gaps and forming a cured adhesive seal. That approach prevents micro-movement across the full engagement area rather than relying on friction at a single component.

• Creates a full-contact adhesive bond between thread surfaces
• Eliminates need for multiple specialty locking parts in many cases
• Also acts as a thread seal to reduce corrosion and leakage
• Works on metal-to-metal threaded parts across recommended sizes

Who is this for? Permatex 24010 is aimed at professional technicians, home mechanics and hobbyists who want a neat, dependable threadlocker for everyday fasteners from 6 mm to 25 mm. It’s especially useful when you need reliable vibration resistance without permanent bonding, and when precise, mess-free application is important—for example, in automotive repair, small engine work, and equipment maintenance.