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Customer Top Picks

Loctite 209741  Heavy Duty Threadlocker Red .08 fl oz Tube
$7.91
2 people liked this
Permatex 24200 Medium Strength Threadlocker Blue 6 ml tube
$7.93
0 people liked this
Permatex 24206 2.5 ML Blue Medium Strength Threadlocker
$6.93
0 people liked this
Permatex 27100 High Strength Threadlocker Red .20 fl oz Tube
$7.82
2 people liked this

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About Threadlocker & Tighteners

Threadlocker is a thin, single-component adhesive, applied to the threads of fasteners such as screws and bolts to prevent loosening, leakage, and corrosion. Typically, thread-locking fluids are methacrylate-based, and cure anaerobically. Thread-locking fluid is a thixotropic fluid, meaning that under shear stress, it exhibits a time-dependent decrease in viscosity. This allows it to flow well over time, yet still resist short-duration shearing, as in vibration or shock. Thread-locking fluid is typically sold in small containers, in amounts from 5 millilitres (about one teaspoon) to 250 millilitres (8.5 US fl oz), and are often color-coded to indicate their strength. Threadlocker is also sold in sticks, and in tape form, similar to Teflon tape.