LOCTITE 248
Harmonization Code : 3824.99.92.97 | Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: other : other : other



Main features
- Clean Stick Application
- Medium-Strength Metal Threadlocking
- Active and Passive Metal Cure
Product Description
LOCTITE 248 is a blue, wax-consistency anaerobic threadlocker supplied in a self-feeding stick for medium-strength locking of metal fasteners. The semi-solid format allows direct application to threads and is useful where a liquid product may be too fluid or difficult to place. It cures when confined between close-fitting metal surfaces without air and works on active metals as well as passive surfaces such as stainless steel and plated fasteners. UV fluorescence supports application inspection. Torque values apply to degreased steel, black-oxide steel, and stainless-steel fastener configurations under defined cure conditions.
Key features
- Clean stick application: The self-feeding semi-solid format supports direct, controlled placement on threads.
- Active and passive metals: The anaerobic formulation cures on common active metals and passive metal surfaces.
- Medium-strength retention: Cured assemblies provide threadlocking while remaining serviceable with appropriate tools.
Applications / Suitable for
- Medium-strength locking of metal fasteners
- Stainless steel and plated threaded assemblies
- Applications where stick placement is preferred over liquid
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Chemical Properties
Additional Information
As-supplied / before-processing properties
Typical values for the product before cure or assembly.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance and form | Blue wax-consistency stick | - | Uncured |
| Components | One | - | No mixing required |
| Fluorescence | Positive | - | Visible under UV light |
| Specific gravity | 1.03 | - | Typical |
| Unworked penetration | 90 to 140 | 0.1 mm | ISO 2137 |
| Melting point | >65 | deg C | Typical |
After-processing / final-state properties
Typical values for the cured product under the listed conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Breakloose torque | >=7 | N m | ISO 10964; pretorqued 5 N m; degreased 3/8 x 16 steel; cured 1 h at 25 deg C |
| Breakloose torque | >=6 | N m | ISO 10964; pretorqued 5 N m; stainless 3/8 x 16; cured 4 h at 25 deg C |
| Breakaway torque | 13 | N m | ISO 10964; degreased 3/8 x 16 steel; cured 24 h at 25 deg C |
| Breakaway torque | 23 | N m | ISO 10964; M10 black-oxide steel; cured 24 h at 25 deg C |
| Breakaway torque | 12 | N m | ISO 10964; stainless 3/8 x 16; cured 24 h at 25 deg C |
| Breakloose torque | 25 | N m | ISO 10964; pretorqued 5 N m; M10 black-oxide steel; cured 24 h at 25 deg C |





















