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243™ Threadlocker, Medium Strength


243™ Threadlocker, Medium Strength
Item #100869835
  • 50 ml Container
  • Blue Color
243™ Threadlocker, Medium Strength
    Shipment Options
  • 50 ml Container
  • Blue Color


  • 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
Fastener Size Range 1/4 in to 3/4 in
Viscosity Speed 20 RPM 2150 mPa·s (cP)
Full Cure Time @ Temperature 24 h @ 72 °F
Recommended Primer Primer N™, T™
Breakaway Torque ~ 26 Nm, 230 in lb (M10 Steel Nuts/Bolts)
Viscosity (cP) 2,250/12,000 Thixotropic
Color Blue
Cure Speed Full (Steel) 24 h @ 25 °C
Strength Medium
Odor Characteristic
Container Size 50 ml
You May Also Need Threadlocker to Primer N, Threadlocker to Primer T
Cure Speed Fixture 10 min @ 25 °C
Prevail Torque 5 Nm, 40 in lb (M10 Steel Nuts/Bolts)
Temperature Range [Max] 300 °F
Temperature Range [Min] -65 °F
Resistance (Chemical) Oil
Fastener Type Metal
Physical Form Liquid
Oil Tolerant Yes
Container Type Bottle
Curing Method Anaerobic
Prevailing Torque 62 lbf
Typical Use Up to 3/4" Bolts With Light Oil Contamination
Weight 0.17 LB
EAN or UPC 79340438972
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