Loctite 504466 All-Purpose Medium-Strength Threadlocker Stick – Blue, 19 g

Overview

Meet the Loctite 504466 All-Purpose Medium-Strength Anaerobic Threadlocker Stick in blue. This 19-gram wax-like adhesive is engineered for metal fasteners, offering a reliable, easy-to-use solution that locks bolts and fittings with medium-strength hold. The blue tint helps with quick identification during maintenance, while the stiff, waxy consistency guides application to the threads without drips or mess.

Designed for versatility, this threadlocker sticks to a broad range of metal substrates, including passive materials such as stainless steel and aluminum. It remains effective even when minor oil residue is present from motor oils or cutting fluids, helping you complete tasks with less surface prep. The formulation is drip-proof and leak-proof, which makes overhead or awkward angles more manageable without sacrificing control.

Once applied, you can expect a fast initial set in about 10 minutes, with full strength reached after roughly 24 hours. The product covers a useful bolt size range from 6 mm to 19 mm (1/4 to 3/4 in), providing broad compatibility for many automotive and maintenance applications. The combination of quick handling and reliable performance makes it a practical option for technicians and DIYers alike.

Key benefits

• Broad metal compatibility, including stainless steel and aluminum.
• Tolerance to minor oil contamination from motor oils and cutting fluids.
• Drip-proof and leak-proof formula for clean, controlled application.
• Easy removal when disassembly is needed with standard tools.
• Fast initial cure (about 10 minutes) and full strength (24 hours).
• Wide bolt compatibility from 6 mm to 19 mm (1/4 to 3/4 in).

Common applications

• Valve cover bolts and water pump bolts in automotive maintenance.
• Caliper brackets and other critical fasteners that require secure locking yet eventual removal.
• General metal assemblies where vibration could loosen fasteners.
• Overhead or hard-to-reach joints that benefit from a drip-proof application.

How to use

Prepare surfaces by removing grime or obvious oil residues. Apply a thin, even bead to the threaded area, assemble the parts, and torque as needed. Allow curing time before subjecting the fasteners to full service loads.

Note: Results may vary with surface condition, temperature, and load. This product is intended to provide secure locking with possible removal when required.