Applied Bolting Technology manufactures Direct Tension Indicators (DTIs). Our DTIs are manufactured to satisfy the compression requirements of all applicable specifications (ASTM, ASME, BS, EN, etc.) & are an acceptable bolt tensioning method by all modern structural standards. Applied Boltings DuraSquirt DTIs are an integral part of structural fastening systems that illustrates when structural bolts are properly tightened. They are used throughout the construction and pipeline industries by the worlds largest engineering, procurement, & construction (EPC) firms. These companies realize that large industrial construction projects can be halted by something as simple as bolting, so they require DuraSquirt DTIs on all their applicable connections in order to assure structural integrity is maintained. Applied Bolting's DTIs are available in 12 up to 1-1/2 & metric Sizes M12 to M36 and covered by ASTM F959 the self-indicating feature is covered by ASME B18.2.6), and manufactured for use with A325, A490, 8.8 and 10.9 bolts & available in several finishes. Unique details regarding Applied Bolting: 1. We are the only DTI manufacturer that posts certifications on the internet for complete traceability. 2. We are the only North American DTI manufacturer that hardens its DTIs per ASTM F959, 959M, B7644, EN14399, AASHTO, AISC, RCSC Specifications & the US Fastener Quality Act of 1999. 3. Our stock levels and inventory allow us to ship an order the same day it is received 90% of the time. 4. The results of our efforts to provide proactive education regarding structural bolting is routinely referenced by large EPC companies, structural organizations (AISC) & publications (Modern Steel, ENR, etc.). Construction Professionals can be confident that material specified and procured from Applied Bolting Technology is the highest quality available, delivered promptly, & supported completely.