Description
Permatex Medium Strength Threadlocker Blue is a single-component anaerobic liquid that cures between close-fitting metal threads to lock fasteners against vibration loosening and to seal against leakage. According to Permatex, it suits nut and bolt assemblies from 6 to 20 mm (1/4 to 3/4 in) and can be removed with standard hand tools, which makes it a common choice for valve cover, oil pan, drive shaft and similar service fasteners. This is the 6 mL tube.
The Safety Data Sheet classifies the product as a skin irritant (Category 2), serious eye irritant (Category 2A), carcinogen (Category 1B) and repeated-exposure target organ toxicant (Category 2), with the signal word Danger. Wear protective equipment, obtain special instructions before use and read the Safety Data Sheet. Not recommended for plastics. Sold per tube.
Features
- Medium-strength anaerobic threadlocker for metal fasteners
- Locks against vibration loosening and seals against leakage
- Fits nut and bolt assemblies from 6 to 20 mm (1/4 to 3/4 in)
- Removable with standard hand tools for servicing
- Temperature range of -54 to +149 °C (-65 to +300 °F)
Specifications
| Brand | Permatex |
|---|---|
| Manufacturer part number (MPN) | 24200 |
| Big Papa SKU | BP-G-PER-24200 |
| Type | Medium-strength anaerobic threadlocker, single component |
| Appearance | Opaque blue fluorescent liquid |
| Viscosity (Brookfield RVF, spindle 3, 20 rpm) | 800 to 1,600 cP |
| Flash point (TCC) | Above 93 °C (200 °F) |
| Fastener size | 6 to 20 mm (1/4 to 3/4 in) |
| Fixture time, 3/8-16 steel | 5 min with primer, 20 min without |
| Full cure | 24 h at 22 °C (72 °F) |
| Typical breakaway torque, 3/8-16 steel | 12 N·m (110 lb·in) |
| Temperature range | -54 to +149 °C (-65 to +300 °F) |
| Net content | 6 mL tube; Permatex item no. 24200 (Canada 24209) |

