Posted by Kaegi [108.162.246.78] on Wednesday, December 14, 2016 at 02:26:37 :
In Reply to: Sheet metal screws posted by Sherman in Idaho [108.162.246.66] on Wednesday, December 14, 2016 at 00:34:33 :
they are acme thread. if you had one in your hand you would see the threads are square.
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