I called CS and they returned my call a bit later. Service was very nice and explained that it was an error as earlier models of the SM045 used these smaller (10/32?) bolts. He would send me a set of 5/16" bolts in the mail. Not an urgent concern for now. Meanwhile I connected and fired up the smoker with two chunks of wood. The chunks are rather large and the lid indeed did not fully close. As I'm just doing the burn in I didnt worry about the lid. I set it at 275 and was going to do 4 hours. But my outdoor receptacle tripped (which it does from time to time, so I just plugged it in another one in the house and ran the cord out the door. Need to see how they have my outdoor receptacle wired up, probably too small amp but it connect to our GFI in the master bath for some reason. 750w shouldn't be too much, my wife has her 1,200 watt plus hairdryer running on that same circuit! Getting a good level of smoke, too bad the smoker is empty!