Roark's Formulas p.428, Case 9a, consider the interior forces/reactions at the nut diameter, the exterior forces at the hole diameter.
V. Steve Gordin, SE
----- Original Message -----From: Drew MorrisTo: SEAINTSent: Thursday, June 25, 2009 13:25Subject: Anchor rod washersI am trying to track down the recommended washer plate thickness for anchor rods. Typically the holes are oversized and I am trying to find the thickness for the washers. i assume it is some percentage of the rod diameter. Can anyone direct me to where i can this info?