Self-indicating direct tension indicators, called Squirter® DTIs, are made to the same high quality standard and compression load resistance as our standard DTIs. Squirter® DTIs are simply regular DTI's with a flexible silicone embedded in the depressions under the bumps. As the bumps in the steel DTI washer are compressed by the action of tightening the bolt, the silicone is squirted out and becomes a visible indicator of correct bolt tension.
Applied Bolting Technology manufactures direct tension indicating (DTI) washers. These washers are used to get bolts installed to the correct TENSION, regardless of the bolt's torque resistance. Tens of millions of Squirter® DTI's have revolutionized the bolt-up process on power plants and other structural steel projects, making bolt installation and inspection easy and accurate. Now the Wind Power Industry is using them too.

