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Old 05-12-2016, 09:31 AM   #31
CPseudonym
Guru
 
City: Hotel, CA
Join Date: Sep 2011
Posts: 8,323
If you'd like to put this whole mystery to bed once and for all take 2-3 of these screws to a local tool and die maker(master machinist). Walk in Monday morning and offer to pay him to precisely identity your fasteners. It'll take him about 5 minutes with thread micrometers, pitch gauges and a machinists bible to end the mystery once and for all. While there he will likely be willing to tell you what size to modify to. He can also order replacements for you for a fee.
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Craig

It's easier to fool people than to convince them that they've been fooled - Mark Twain
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