Threadlocker Loctite 243 – Medium Strength

LOCTITE® 243 is a blue, medium-strength threadlocker for locking and sealing nuts and bolts. Prevents loosening due to shock and vibration while remaining removable with standard hand tools. 

Works on all metals, including passive substrates such as stainless steel and aluminium. Cures through light oil contamination without primer. 

Features 

Strength: Medium 

Colour: Blue 

Cure type: Anaerobic 

Application: Threadlocking 

Fixture time: approx. 10 min 

Disassembly: Removable with hand tools 

NSF/ANSI 61 certified: Yes 

Fluorescent: Yes 

Technical data 

Service temperature: -55 to +180 °C 

Breakaway torque (M10 steel): approx. 26 Nm 

Prevail torque (M10 steel): 5 Nm 

Viscosity (20 rpm): 2150 mPa·s 

Specific gravity (23 °C): 1.08 

Physical form: Liquid 

Recommended materials: Metal, passive metals