Loctite 277 – High Strength Threadlocker

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

• Ultra High Strength – Permanent locking; removal requires heat + tools

• For Large Fasteners – Designed for bolts up to 1.5 inches

• Superior Vibration Resistance – Prevents loosening under heavy stress

• High Temperature Performance – Works from –55°C to +150°C

• Oil Tolerant – Effective even on slightly oily surfaces

• Prevents Rust & Leakage – Seals threads to stop corrosion

• Fast Fixture Time – Achieves handling strength in approx. 15–30 minutes

Best For

• Heavy machinery & industrial equipment

• Automotive & truck assembly

• Construction equipment

• Gearboxes, pumps, motors, and compressors

• Permanent locking of large bolts, studs, nuts, and threaded assemblies