Description
LOCTITE® 243 is a general purpose threadlocker that provides a medium strength bond. It is proven to be tolerant of minor contamination due to industrial oils, e.g., motor oils, corrosion prevention oils and cutting fluid.
- Pack size: 250 ml bottle (Loctite no. 1335868)
- Available as well in 5 ml, 10 ml and 50 ml bottle
Application
- LOCTITE 243 works on all metals, including passive substrates such as stainless steel, aluminium and plated surfaces.
Characteristics
- Prevents loosening on vibrating assemblies, e.g. pumps, gear boxes or presses
- Works on all metals, including passive substrates (e.g. stainless steel, aluminium, plated surfaces)
- Proven to tolerate minor contamination by industrial oils, e.g. engine oils, corrosion prevention oils and cutting fluids
- Permits disassembly with hand tools for servicing
- P1 NSF Reg. No.: 123000
Technical specifications
| Application Temperature | -55.0 – 180.0 °C |
| 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. |
| Physical Form | Liquid |
| Prevail Torque, M10 Steel Nuts/Bolts | 5.0 N·m (40.0 in./lb. ) |
| Specific Gravity, @ 23.0 °C | 1.08 |
| Viscosity, Speed 20 RPM | 2150.0 mPa·s (cP) |
Hazard Identification (CLP)

Signal word: Warning
Hazard Statements (H-Sets)
- H317: May cause an allergic skin reaction.
- H412: Harmful to aquatic life with long lasting effects.
Prevention (P-Sets)
- P273: Avoid release to the environment.
- P280: Wear protective gloves.
Reaction (P-Sets)
- P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
Additional Labeling (EUH-Statements)
- EUH208: May cause allergic reactions.
General Safety Advice and Disposal
- P101: If medical advice is needed, have product container or label at hand.
- P102: Keep out of reach of children.
- P501: Dispose of contents/container in accordance with local regulations.
Other Relevant Information
- Contains Tetramethylendimethacrylate, Maleic acid, and 2′-Phenylacetohydrazide.
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com






Alberto T. –
Everything OK, recommended. Simply excellent. Very good build quality.
pietro88 –
Works just as advertised.
Michele A. –
Everything OK. Fast and reliable. Quality is excellent.
Ines –
Very effective; I noticed a change in just one week.
chiara_sun –
Very satisfied, it’s even better than I expected.
Lukas E. –
Durable product. Top product, would definitely recommend.
Tim –
Durable product. Perfect match with the description.
isabella.xo –
Not too big, not too small, just perfect. No unpleasant smell, which I really appreciate.
Finn –
Exactly what I was looking for. Exactly as in the pictures. Perfect in every detail.
Emily X. –
I noticed the difference right away! Super fast delivery, thank you.
James –
Excellent quality.
ryan_lee –
Excellent workmanship.
camilla_s –
Easy to use, without making a mess. A friend recommended it; I’m very happy with the purchase.