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Originally Posted by oreo_n2  i dont think thats a big deal. you need a new screen... true... but compared to the cost and aggravation of the alternatives... you're doing ok... now keep opening the hole til you can get the remains of the bolt out with your screw extractor or hammered in hex or torx bit. |
Yeah, used to have to do this with galvenized piping for steam boilers. Essentially just drill the bolt out till you have nothing left by the threads, and then simply just pry/chisel them out of the casing. Basically just drill a large enough diameter hole that with the amount of bolt left, its essentially paper thin and will just fold off the walls of the bolt hole.