About With generations of experience in designing, manufacturing and distributing window and door hardware across the globe, the collective ingenuity of the team at Interlock USA has been decades in the making. Perhaps best known as the inventor of the automatic sash lock system for vinyl windows, Interlock USA, an ASSA ABLOY company based in Reno, Nevada, specializes in working closely with window and door manufacturers to create innovative hardware designs that differentiate their products from the competition. We take application engineering to a whole new level, helping manufacturers successfully bring new products from concept to market by developing customized solutions that integrate seamlessly into their product line. Through innovative design, superior technical support and personalized service, we help our customers sell their products by introducing unique, sophisticated hardware solutions that consistently hit the mark with consumers—both in form and function. With worldwide resources through ASSA ABLOY, and partnerships with globally recognized companies such as the SIEGENIA-AUBI Group (SIEGENIA-AUBI & KFV) and Dr. Hahn, Interlock USA provides comprehensive, cost-effective solutions for window and door manufacturers throughout North America. We consider our organization a conduit for innovation, working to expand opportunities for our clients, partners and vendors through innovative product design and strong, longlasting relationships. As a challenging market necessitates flawless engineering and strategic flexibility, we continue to focus on mobilizing our resources throughout the world to provide the most advanced hardware, superior technical support and unmatched distribution capabilities. Interlock USA is proud to be a member of the American Architectural Manufacturers Association (AAMA).