Thread: USA mfg screws
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Old 11-06-2018, 05:38 PM   #15
john in illinois
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Location: Illinois
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Default Re: USA mfg screws

Quote:
Originally Posted by rockfla View Post
Russcc


By and large, there are NO major USA screw producers. EVEN following ANSI, SAE and ASTM standards.....there are Min/Max tolerances and it seems through out the "fastener" world today....mills are producing "more" to the "Min" than to the "Max. Measure bolts the next time you buy some they will be just shy of the "actual" advertised length!!!

I have noticed this with cotter pins.Many are made at the low end of the tolerance. I have started using aircraft.

John
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