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243™ Threadlocker, Medium Strength

Item #100869835
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Product details

  • 243™ Threadlocker
  • 50 mL Bottle


  • LOCTITE® 243 is a general purpose threadlocker that provides a medium strength bond. LOCTITE 243 works on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces. It is proven to be tolerant of minor contamination due to industrial oils, e.g., motor oils, corrosion prevention oils and cutting fluid.


  • Prevents loosening on vibrating assemblies, e.g. pumps, gear boxes or presses
  • Works on all metals, including passive substrates (e.g. stainless steel, aluminum, plated surfaces)
  • Proven to tolerate minor contamination by industrial oils, e.g. motor oils, corrosion prevention oils and cutting fluids
  • Permits disassembly with hand tools for servicing
  • NSF/ANSI 61 Certified


You May Also Need Threadlocker to Primer N, Threadlocker to Primer T
Fastener Type Metal
Prevailing Torque 62 lbf
Full Cure Time @ Temperature 24 h @ 72 °F
Curing Method Anaerobic
Odor Characteristic
Temperature Range [Min] -65 °F
Cure Speed Fixture 10 min @ 25 °C
Container Size 50 mL
Resistance (Chemical) Oil
Color Blue
Viscosity (cP) 2,250/12,000 Thixotropic
Strength Medium
Fastener Size Range 1/4 in to 3/4 in
Container Type Bottle
Typical Use Up to 3/4" Bolts With Light Oil Contamination
Recommended Primer Primer N™, T™
Temperature Range [Max] 300 °F
Cure Speed Full (Steel) 24 h @ 25 °C
Oil Tolerant Yes
Weight 0.17 LB
EAN or UPC 79340438972
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