LOCTITE 262 Permanent-Grade High Strength Red Threadlocker, 50ml, Mil-Spec Approved for Structural and Critical Fastener Applications
Structural fasteners and critical hardware that cannot afford to back out under vibration, shock loading, or sustained mechanical stress require a permanent-grade threadlocker with documented specification backing, not a generic high strength product of uncertain provenance. Supplied by JHEARs Aerospace, LOCTITE 262 is a high strength red permanent-grade threadlocker with mil-spec approval, giving maintenance engineers a recognised standard on the maintenance record rather than a substitution that may not satisfy the documentation requirement. It delivers serious holding power against vibration and shock loading at operating temperatures where standard high strength formulas perform at their rated strength.
Where LOCTITE 272 is the correct choice for heat-exposed fasteners that also need temperature resistance, LOCTITE 262 is the mil-spec permanent-grade option for structural and critical fasteners in standard operating temperature environments where the primary requirement is maximum retention strength and a documented specification approval. The 50ml tube provides a working volume suited to professional workshop and line maintenance use across the range of structural fastener applications that require this specific grade.
Spec: LOCTITE 262 permanent-grade high strength threadlocker, red, 50ml, PN 27240. Mil-spec approved anaerobic formula. Permanent retention for M6 to M20 fasteners subject to vibration, shock loading, and sustained mechanical stress. Removal requires heat and hand tools.
Who this is for: Aircraft mechanics and engineers securing structural fasteners and critical hardware to documented maintenance standards that require a mil-spec approved threadlocker, MRO operations where maintenance records must show a recognised specification product rather than a generic equivalent, and engineering professionals who need maximum permanent retention strength on fasteners that are not subject to the elevated temperatures that would require LOCTITE 272.
FAQ
What mil-spec does LOCTITE 262 meet and why does that matter for maintenance records?
LOCTITE 262 meets MIL-S-46163A Type II Grade M specification. For maintenance operations where the work order or maintenance manual requires a mil-spec approved threadlocker, specifying LOCTITE 262 by its PN and mil-spec designation on the maintenance record provides the documented compliance trail that a generic high strength product cannot. Always verify the specific mil-spec requirement in your maintenance documentation before product selection.
When should I use LOCTITE 262 versus LOCTITE 272 on a high-vibration fastener?
Use LOCTITE 262 for structural and critical fasteners in standard operating temperature environments where permanent high strength retention and mil-spec documentation are the primary requirements. Use LOCTITE 272 when the fastener is also subject to sustained elevated temperatures above 150 degrees Celsius, such as engine-adjacent and exhaust system locations, where temperature resistance is required alongside permanent retention strength.
How is a LOCTITE 262 bonded fastener removed at maintenance?
As a permanent-grade compound, removal requires applying localised heat to the fastener and surrounding material, typically in the range of 200 to 250 degrees Celsius, to soften the cured adhesive, followed by hand tool removal while the bond is heat-softened. Plan for this removal process when selecting LOCTITE 262 for any fastener that may need future disassembly.
Why should I purchase my mil-spec threadlocking products from JHEARs Aerospace?
At JHEARs Aerospace, we supply Loctite threadlocking products including mil-spec approved grades sourced to ensure product authenticity and specification compliance. Our range gives maintenance engineers confidence that the product received carries the correct approval for the documented maintenance requirements your operations depend on.
