History The YKK Group Quality management Environment policies Service center (FTC/FTS)	Multiple certifications The YKK STOCKO FASTENERS name stands for superb quality, consistent precision and enduring reliability in all our company's closure systems. We guarantee this with a comprehensive quality management system complying with DIN EN ISO 9001:2008. STOCKO offers its worldwide clientele products and finished materials which are certified to the Öko-Tex 100 standard and which satisfy the criteria set forth in EC Directive 94/27/EC. For you that means: Products you can depend on. Products which live up to the promises they make, even in continuous use. Superior products and innovative solutions protected by numerous patents are confirmation and motivation at the same time: YKK STOCKO maintains its own research and development department. Highly qualified employees are continuously at work on optimizing and forward-looking new developments in closure systems and the corresponding attaching technologies. Here the STOCKO specialists assign particular importance to solutions which meet the demands of practical use, offering the customer maximum flexibility.