Scotch-Weld™ Threadlocker

3M's Scotch-Weld threadlockers provide vibration, corrosion, and shock resistance for fasteners in assembled form. They are available in purple (TL22), blue (TL42 and TL43), red (TL71), and green (TL90), and low, medium, and high strengths. The threadlocker hardens and seals threaded assemblies to resist vibration and prevent loosening or leakage of secured fasteners. Applying this adhesive to fasteners before tightening seals out moisture and prevents corrosion. Application is fast and easy with just a targeted squeeze of the bottle. Places where it is useful include machine tool access bolts, hydraulic system bolts, gearbox/driveshaft bolts, bearing cover cap screws, countersunk screws, and conveyor roller bolts.