Abstract
<jats:p>The aim of this study is to conduct a comparative analysis and select domestic alternatives to the universal one-component, medium-strength anaerobic thread locker Loctite 243 (Germany). The evaluation criterion was to ensure comparable quality and reliability of locking performance while minimizing the final product cost. The objects of the study were the following alternative sealants: ROSLOCK 243, AXIOM AS311, ADHESOL 534, EFELE 113, SantekhMaster Blue Gel, Anakrol 2032, and RusBond A2.43. Under specified curing time and medium-strength conditions, key performance characteristics of the alternatives were determined, including breakaway torque and unscrewing torque.A comparative analysis of the experimental results against the manufacturers’ technical specifications confirmed that the declared performance characteristics correspond to the actual functional properties. Based on the study results, EFELE 113 and ROSLOCK 243 were identified as the optimal alternatives. Under standardized experimental conditions, their use enables a reduction in the final product cost by approximately 8.2 and 9.5 times, respectively. The adoption of these alternatives enhances the stability and efficiency of logistics processes, simplifies supply chains, and reduces associated risks, including those related to sanctions.</jats:p>