Huitian 7262 (Original code HT2621, equivalent to Loctite 262) is medium-high strength anaerobic thread locker in red thixotropic liquid form, ready-to-use single-component adhesive. It cures only in oxygen-free gaps between mating metal threads, designed for permanent locking of heavy-load fasteners with much higher fastening strength than 7242 & 7243. It resists loosening under continuous vibration; disassembly requires heating plus hand tools. It integrates thread sealing, rust prevention and corrosion protection functions, widely applied in auto, heavy industry and machinery assembly.
Core Technical Parameters
– Appearance: Homogeneous red thixotropic liquid
– Chemical base: Methacrylate anaerobic resin system
– Viscosity: 5000~8500 mPa·s, excellent anti-sagging performance
– Max gap filling: 0.13mm
– Fixture time: ≤20 mins at 23℃ ambient temperature; fully cured within 24 hours
– Breakaway torque: 20~40 N·m; Removable torque: 10~18 N·m
– Continuous service temperature: -50℃ ~ 150℃
– Applicable thread size: M6 ~ M20 bolts
– Packages: 50ml bottle, 250ml large industrial bottle
– Curing mechanism: Anaerobic curing; stays liquid permanently when exposed to air
Key Product Advantages
1. Medium-high strength permanent locking: Powerful clamping force prevents loosening under long-term vibration; disassembly needs heating at ~180℃ together with wrenches, not suitable for frequent maintenance parts;
2. High thixotropy prevents dripping on vertical and overhead threads, clean operation in narrow spaces;
3. Outstanding chemical & corrosion resistance: Stable against engine oil, diesel, coolant, hydraulic fluid and moisture, avoids thread rust seizure and fluid leakage;
4. Wide substrate compatibility: Works well on carbon steel, stainless steel, aluminum alloy and galvanized metals;
5. Triple thread protection: Anti-vibration loosening, fluid sealing and rust isolation;
6. No mixing required, long shelf life under room temperature storage for mass production.
Main Applications
1. Permanent fastening for heavy-load bolts on engine blocks, flywheels, chassis axles and gearboxes of trucks and passenger vehicles;
2. Anti-loosening locking for reducers, hydraulic pumps and traveling mechanisms of excavators & loaders;
3. Thread sealing for air compressors, machine tools and generator sets enduring continuous vibration;
4. Permanent locking for load-bearing screws of wind turbine gearboxes and rail transit equipment;
5. Assembly for threads requiring lifelong anti-loosening without regular maintenance.）
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