Loolifl 243 271 50ml Thread Locker Kit Anaerobic Screw Lock Glue Anti Loose Anti Vibration Thread Sealant for Metal Bolts Repair

Loolifl thread locker 243 blue medium removable & 271 red high permanent anaerobic screw lock glue anti-vibration anti-rust thread sealant for auto, motorcycle, machinery metal bolt maintenance2. 5 bullet points Two strength options to cover all locking demandsWe offer two classic thread locker formulas for different maintenance scenarios. blue 243 is a medium-strength removable adhesive for parts that need frequent disassembly; red 271 is a high-strength permanent locking compound for heavy-duty, high-vibration components. you can choose the right model according to your bolt fixing requirements.Excellent integrated thread protection performanceBoth 243 and 271 adopt a premium anaerobic formula. they cure only when isolated from air between metal threads, forming a solid sealing layer with powerful functions: anti-loosening, anti-vibration, anti-rust, anti-corrosion, and anti-leakage. tiny gaps on threads will be fully filled to avoid bolt looseness, oil leakage, and metal oxidation after long-term use.Stable wide temperature adaptabilityAfter full curing, both thread lockers work steadily within -50℃ ~ 200℃ (-58℉~392℉). they will not soften under high engine temperature or crack in low-temperature outdoor working environments, adapting to all-season vehicle and mechanical maintenance.Clear differentiated application and disassembly features✅ model 243 blue (medium strength)Disassemble easily with standard hand tools without heating; fits m6-m36 metal bolts. ideal for daily hardware, bicycles, general machinery, and conventional auto parts that require regular inspection and disassembly.✅ model 271 red (high strength permanent)Permanent locking effect; disassemble only after heating to 200-260℃ with tools; fits m5-m25 metal bolts. perfect for car engines, motorcycles, construction machinery and heavy vibration industrial equipment.