In a nutshell
The right choise for
With Loctite 620, you reliably secure cylindrical joints against severe thermal and mechanical stresses. This anaerobic retaining compound cures in the absence of air between close-fitting metal surfaces, filling diametral gaps up to 0.2 mm. It effectively eliminates fretting corrosion and prevents loosening or leakage caused by continuous vibration and shock loads. Designed to withstand operating temperatures from -55 °C to 230 °C, it is ideal for retaining bushings, bearings, locating pins, and heat exchanger tubes in engine assemblies or industrial machinery. The practical 250 ml bottle ensures clean, precise liquid application for strong and durable metal assemblies.