Loctite 242 Threadlocker – Medium Strength, Removable

Loctite 242 is a one-component, blue anaerobic adhesive that locks and seals threaded metal fasteners. It cures without air between close-fitting metal surfaces and prevents loosening and leakage from shock and vibration, while allowing disassembly with standard hand tools for servicing.

Key features

  • Medium strength: release the fastener with standard hand tools
  • Prevents loosening and leakage caused by shock and vibration
  • Suited to plated and other less active surfaces where servicing is required
  • Thixotropic: the liquid stays where it is applied
  • One component: no mixing

Typical applications

  • Threaded fasteners that are serviced regularly
  • Plated components
  • Equipment exposed to vibration

Specification

Specification Details
Brand Loctite (Henkel)
Product code 242
Type Anaerobic threadlocker, one component
Strength Medium
Colour Blue
Viscosity Medium, thixotropic
Removal Standard hand tools; localised heat to about 250 °C if needed
Not recommended for Thermoplastic parts (risk of stress cracking); pure-oxygen or oxygen-rich systems

Ordering: Tell us the pack size and quantity you need and we will send a quotation.