Description
LOCTITE 266 is a high temperature, high strength, red-orange anaerobic threadlocker. It is a 1-part, thixotropic liquid that is fast curing and which resists oil and mild surface contamination at temperatures up to +232°C. Locks fasteners up to 20mm in diameter.
- Pack size: 50 ml tube (Loctite no. 1117533)
Application
- Particularly suitable for heavy duty applications such as bolts used in transmissions, construction equipment or railroad assemblies where resistance to heavy shock, vibration and stress level is required along with exposure to elevated temperatures.
Characteristics
- Locks fasteners up to 20 mm in diameter
- CFIA listed
- Resists oil and mild surface contamination at temperatures to +232 °C
Technical specifications
| Colour | Red-orange |
| Cure type | Activator cure, Anaerobic cure |
| Fixture time | 15 min |
| Physical form | Liquid |
| Viscosity, Brookfield – RVF, @ 25.0 °C Spindle 3, speed 2 rpm | 7000.0 – 11000.0 mPa·s (cP) |
| Viscosity, Brookfield – RVF, @ 25.0 °C Spindle 3, speed 20 rpm | 2500.0 – 5000.0 mPa·s (cP) |
| Fluorescence | Positive under UV light |
| Strength | High |
Hazard Information (CLP)

Signal word: Warning.
Hazard Statements (H-statements)
- H317: May cause allergic skin reactions.
- H319: Causes serious eye irritation.
- H335: May cause respiratory irritation.
- H412: Harmful to aquatic life with long lasting effects.
Precautionary Statements (P-statements)
Prevention:
- P273: Avoid release to the environment.
- P280: Wear protective gloves.
- P261: Avoid inhalation of vapors.
Response:
- P333+P313: If skin irritation or rash occurs: Get medical advice/attention.
- P337+P313: If eye irritation persists: Get medical advice/attention.
Additional Labeling (EUH-statements)
No relevant EUH-statements found.
Storage and Disposal
No specific storage or disposal instructions provided.
Other Relevant Information
This product does not contain substances classified as PBT, vPvB, or Endocrine Disruptors (ED).
Henkel AG & Co. KGaA, Henkelstr. 67, 40589 Düsseldorf, GERMANY, +49 211 7970, [email protected], www.henkel.com






Louise –
I noticed the difference right away! This solved my problem completely! Super fast delivery, thank you.
Maddalena E. –
Surprisingly good quality for the price.
matthieu_fr –
Everything’s great.
jonas_sky –
Feels sturdy. No complaints.
Nicholas Z. –
Works flawlessly. Fast and courteous service. Simply excellent. Easy to use and very practical.
Madison –
I was skeptical, but now I order regularly. A friend recommended it to me and I’m thrilled with the purchase. Packaging was slightly damaged, but product is excellent. No unpleasant smell, which I really appreciate.
François –
Very fast shipping. Excellent quality. As expected, top-notch.
Lukas V. –
Met my expectations. Impeccable quality.
Sandrine –
Perfect for my needs, couldn’t be happier. Perfect for my needs; I’m very satisfied. Pleasant to use at home. A friend recommended it; I’m very happy with the purchase.
hannes_s –
Very practical. Great service and product.
Fabian I. –
Met my expectations. Perfect from start to finish. Everything in order. Everything perfect and fast.
Davide –
Fast and secure delivery. Top quality, fast delivery. Everything perfect, would buy again.