Cleary, Douglas B., William T. Riddell, and Christopher J. Lacke. “Effect of Washer Placement on Performance of Direct Tension Indicators With Curved Protrusions”. Engineering Journal 49, no. 2 (June 30, 2012): 55–64. Accessed April 1, 2026. https://ej.aisc.org/index.php/engj/article/view/1025.