I have an application for mower spindles that currently is calling out 1144 Stressproof. The reason that this was chosen, from my understanding, was to help prevent the external threads at one end from stripping out. It has been mentioned to me by a number of people that 1144 Stressproof has a soft center, meaning the stressproofing on penetrates so deep. Is this the case? I have not been able to find any information to substantiate these claims. Can anyone help me? What other materials would you suggest for this application?
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