Formerly Emhart Teknologies & Infastech


Founded in 1927 under the name Detroit Tap and Tool Co.. a manufacturer of cutting tools for the auto industry, Spiralock evolved over the years, tapping into new markets and industries with new types of products. The real breakthrough came in 1979 with the introduction of the Spiralock® internal locking thread form system. Successfully adopted by NASA on their space rocket engines, it soon became the choice of many of today’s engineers to prevent or solve screw threads from coming loose in a wide range of applications.

Located in Chesterfield, Michigan, with operations in Europe, South America, and Asia, Spiralock serves a multitude of industries worldwide including aerospace, heavy truck, military, automotive, diesel engines, medical, farm and construction, oil and gas, and others.

Our vision is to be recognized as the leading international fastening solutions company. By understanding and staying one step ahead of the changing needs and desires of our markets, we’re confident we can develop the products and technology our clients need for their fastening solutions, even before they need them.

As of September 2008, Spiralock is part of the STANLEY Black & Decker Corporation, as a brand of STANLEY Engineered Fastening (formerly Emhart Teknologies). Combining STANLEY Engineered Fastening’s global leadership in the design and creation of unique assembly technologies with our reliable Spiralock fastening system, world-class technical expertise, customer service, and global logistical support, we continue to enhance our capabilities to help you improve your product’s quality and integrity.