This iconic threadlocker locks and seals metal nuts and bolts to prevent loosening due to shock and vibration. Medium-strength: removable with hand tools.

LOCTITE® 243 is a blue, general-purpose threadlocker that provides a medium-strength bond. It works on all metals without primer, including passive substrates such as stainless steel, aluminium, and plated surfaces. Cures through most corrsoion prevention oils and cutting fluids on 'as-received' fasteners without aggresive cleaning.

Prevents fastener loosening on vibrating assemblies, e.g. pumps, gear boxes or presses

Works on all metals, including passive substrates

Suitable for use on most 'as-received' fasteners without cleaning

Can be disassembled with ordinary hand tools for easy service and maintenance

250ml sizes are NSF/ANSI 61-certified

How to use

How to apply LOCTITE 243

1. Preparation - Cleaning

2. Preparation - Activation

3. Application

4. Application - Through Hole

5. Application - Blind Hole

6. Assembly

7. Disassembly - Hand Tools

Product category:

Threadlockers Technologies: Acrylates, anaerobic cure

Application method: Dispense gun; Dispense system; Manual

Application temperature: -55.0 °C - 180.0 °C (-65.0 °F - 360.0 °F)

Applications: Threadlocking

Breakaway torque, M10 Steel Nuts/Bolts: ~ 26.0 N·m (~ 230.0 in./lb.)

Colour: Blue

Cure type: Anaerobic cure

Fixture time: 10.0 min

Key characteristics: Disassembly: removable; Fluorescent; General purpose; Oil tolerant; Primerless; Strength: medium strength; Thixotropic

Physical form: Liquid

Prevail torque, M10 Steel Nuts/Bolts: 5.0 N·m (40.0 in./lb.)

Recommended for use with: Metal; Metal: passive metal

Specific gravity, @ 23.0 °C: 1.08

Viscosity, Speed 20 RPM: 2150.0 mPa·s (cP)

Product Code: 1311320