Description
Loctite 277 is a very high-strength, permanent threadlocker designed for securing large bolts and heavy-duty fasteners. It provides maximum resistance against vibration, shock, and high mechanical loads. Ideal for industrial equipment that must remain locked in place during extreme operation.
Key Features
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Ultra High Strength – Permanent locking; removal requires heat + tools
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For Large Fasteners – Designed for bolts up to 1.5 inches
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Superior Vibration Resistance – Prevents loosening under heavy stress
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High Temperature Performance – Works from –55°C to +150°C
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Oil Tolerant – Effective even on slightly oily surfaces
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Prevents Rust & Leakage – Seals threads to stop corrosion
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Fast Fixture Time – Achieves handling strength in approx. 15–30 minutes
Best For
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Heavy machinery & industrial equipment
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Automotive & truck assembly
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Construction equipment
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Gearboxes, pumps, motors, and compressors
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Permanent locking of large bolts, studs, nuts, and threaded assemblies