As a leading manufacturer of bolting technology, TurnaSure is the global supplier of high quality Direct Tension Indicators (DTIs). TurnaSure provides high-end bolting technology for various industrial companies all over the world. The industrial companies in bridge construction, steel building construction, government agencies (DOT) and automotive have been using direct tension indicators DTIs. Let’s work with you. Find out how TurnaSure direct tension indicators (DTIs) and our bolting technology can bring structural stability and savings to your next project.