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Does it allow to hot bending stainless steel round bar? Is that any risk with induction heating of it? Need to hot bend a large diameter 50mm SS304 round bar for holding down bolt . Does it need to do acid washing after that?

150 - 180 Celsius

Yes, this is high temperature application, using astm a193 b7 stud and 2H nut.

Thanks for the advice, will try loctite and center punch. its for long term project, gonna figure out which is more cost effective and time saving.

The temperature may go to 150 degree. Have tried Loctite 263 but no effective. The screw do not need to unscrew.

@deserfox This is the explain of this bolt. The fixed bolt head makes assembly fast and safe since it prevents the nut from loosening during opening and closing of the heat exchanger. The bolt head is fixed through mechanical deformation of the threaded bar with the bolt head in place...

My client request a hexagon bolt with the length up to 1 to 2 meter. Currently I am doing this with welding a nut on it. The clamp load is acceptable but welding did take lot of time and some water flow out from the head after galvanizing. I have found a solution from alfa lava company, any...

I have seen some method to distorting/deforming the thread to prevent it from loosening, like staking or center punch one or more of the nut faces. Is this way suitable for larger and higher strength nut? I am trying to apply it on 1 1/2 inch nut (30HRC) , any idea what kind of machine should I...

why there is a line on the round bar? https://files.engineering.com/getfile.aspx?folder=ad0bb1c7-1caa-43e8-95da-9382c28f57a1&file=0fb37696-40e7-4fbc-be6f-24b8aecf9b16.jpg