Henkel Adhesive Technologies

Henkel Adhesive Technologies



First generation, green, high strength wicking grade threadlocker (Military Spec)

Original high strength and low viscosity wicking grade threadlocker formulation from the 1950s. Designed for locking and sealing fine threaded nuts, bolts and studs in legacy applications where compliance to Mil-S-22473E Grade AA is required.

All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.

Part no. (SKU/IDH)

LOCTITE® GRADE AA, 50 ml Bottle

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When you need to lock and seal fine threaded nuts, bolts and studs in legacy applications where certification to Mil-S-22473E Grade AA is required, choose LOCTITE® Grade AA (89). This green, high viscosity, high strength anaerobic curing adhesive cures in the absence of air and presence of metal. It fluoresces under UV light – great for quality control. The low viscosity properties of Grade AA also make it suitable to seal porosities in welds and metal castings. It is able to penetrate porosities and cracks by capillary action, filling voids as large as 0.005".





Cure type:

Anaerobic Cure

Key characteristics:

Mix: No Mix Required,Strength: High Strength,Viscosity: Low Viscosity

Physical form:


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