G.W.Y., Inc.

Since our beginning in 1975, GWY has been the global leader in providing bolt installation tools for bridges, buildings, and large-scale industrial products. From day one, we have given top priority to customer service, focusing on building lasting relationships and long-term value beyond the products offered. Founded as TC Bolt Corporation by Gene and Gwynne Mitchell, the business is now in its second generation of leadership.

GWY has been a global leader in bolt fastening tools since 1975. Our Turn of Nut line of wrenches are custom designed in partnership with the global leader in electric tool companies, TONE. Using our years of experience in bolt fastening with TONE’s years of quality wrench manufacturing, we have created a wrench that meets the high state and federal standards for structural fastening. Our other lines of tools include the popular Shear wrenches for TC bolts, and our torque wrenches for snug tightening, and tensioning hex-head bolts. We also offer calibration repair services, rentals, and spare parts for all the wrenches we sell and some discontinued models. Our goal is absolute accuracy for any bolt fastening project.