Loctite 1329837 243 Medium-Strength Primerless Threadlocker, 10 Ml, 1/4 In To 3/4 In Dia, Blue

The Loctite 243 Medium-Strength Primerless Threadlocker is a general-purpose, blue liquid adhesive designed to secure metal nuts and bolts up to 3/4 inch diameter. This product prevents the catastrophic failure of assemblies by resisting loosening caused by high shock and vibration in operational equipment. It is formulated to cure consistently on a variety of metals, even when minor oil surface contamination is present.

• Enhances durability by preventing fasteners on vibrating assemblies (like pumps and gearboxes) from working loose.
• Increases efficiency and ease of use as it cures on all metal types, including passive substrates like stainless steel, without requiring an activator/primer.
• Allows for simple maintenance and servicing since the medium-strength bond permits disassembly using standard hand tools.

This product is ideal for maintenance and repair operations (MRO) across manufacturing, automotive, and industrial facilities that require securing fasteners where routine servicing or disassembly may be necessary.

• Container Size: 10 mL
• Max Fastener Diameter: 3/4 in
• Full Cure Time: 24 hrs
• Viscosity Rating: 1,300 to 3,000 cPs
• Compliance: NSF/ANSI 61 Certified; RoHS Compliant

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