Hi, i'm not an expert welder, (x is a has been and a spurt is a drip under pressure) just a creative guy. I had some problems stick welding (3) 1" nuts to 2" angle iron 3 1/2" long. This is supposed to spin smoothly but after I welded them it nearly impossible to turn the bolt rod through them. I intend to weld another 2" angle to create a rectangular box which I am making into a slide that moves between two other pieces of angle. Can I heat up the three nuts and angle to correct the struggle? I think the angle got twisted from the heat. If I heat it up and run a rod through while still hot will that relax the nuts ? I clamped the three nuts to the angle with a rod through them. There was about 1/2" space between the nuts.