3M Scotch-Weld Threadlocker TL22, TL42, TL43, TL71 & TL90

3M Scotch-Weld threadlockers fill the gaps between threaded fasteners and cure into a solid that keeps bolts, nuts, and studs from loosening under vibration. Grades run from TL22 purple for low strength through TL42 and TL43 blue for medium, TL71 red for high strength, and TL90 green for wicking into pre-assembled parts, in 10 mL to 250 mL bottles. See Anaerobic Adhesives for retaining compounds, pipe sealants, and gasket makers.

Blue Threadlocker Green Threadlocker Purple Threadlocker Red Threadlocker