Description
Loctite 262 is a red, one-part anaerobic threadlocker for the permanent locking and sealing of threaded fasteners. It cures without air between close-fitting metal surfaces and prevents loosening and leakage from shock and vibration. Henkel lists large bolts and studs up to M25 (3/4 in) as typical applications, and the thixotropic liquid reduces migration after application. The 50 mL bottle suits maintenance shops and repeat assembly use.
The Safety Data Sheet classifies the product as a skin irritant (Category 2), eye irritant (Category 2B) and a repeated-exposure target organ toxicant (Category 2). Wear protective gloves, avoid breathing vapours or mist and read the Safety Data Sheet before use. Not recommended for pure oxygen systems or as a sealant for chlorine or other strong oxidizers. Sold per 50 mL bottle.
Features
- Permanent locking and sealing of threaded fasteners
- For large bolts and studs up to M25 (3/4 in)
- Thixotropic liquid reduces migration after application
- Resists loosening from shock and vibration
- Fluoresces under UV light to help check coverage
Specifications
| Brand | Loctite |
|---|---|
| Manufacturer part number (MPN) | 26231 |
| Big Papa SKU | BP-G-LCT-26231 |
| Technology | Acrylic, dimethacrylate ester, anaerobic |
| Components | One part, no mixing |
| Appearance (uncured) | Red liquid |
| Fluorescence | Positive under UV light |
| Strength | Medium to high |
| Specific gravity at 25 °C | 1.1 |
| Viscosity, Brookfield RVT, spindle 3, 20 rpm, 25 °C | 1,200 to 1,400 mPa·s |
| Breakaway torque, M10 steel nuts and bolts, 24 h cure | 22 N·m (190 lb·in) |
| Net contents | 50 mL (1.69 fl oz) |
| Henkel part no. | 135374 (item 26231) |

