Keep your projects running smoothly with our direct tension indicating (DTI) washers.

We know that a problem as small as improperly tightened bolts can ripple into big hold ups. That is why our revolutionary DTIs provide visual verification of bolt tension. All our products are designed, engineered, and made in America, using decades of research and cutting edge technologies from the bolting industry. We are the only U.S. manufacturer of heat treated DTIs in accordance with ASTM, AISC, RCSC, and the United States Fastener Quality Act of 1999.

These DTIs provide visual verification of bolt tension – proof that your crew has done their job well and that their connections will function as intended.

Quality is our top priority because we know that you need the best products in order to do your job well. Due to this, tens of millions of our DTIs have been used all over the USA, Canada, Central America, South America, the Middle East, and the Pacific Rim. When you purchase Applied Bolting Technology products, you can be confident that they will be the highest quality available, delivered promptly, and supported completely.