Gold Crown III question

3andstop

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Silver Member
Hi, does anyone know what the machine screw type those allen head screws are that hold the pockets to the corner pieces on Gold Crown III?

I've tried to match it so I could run a tap through the pocket corner, but even after visiting my buddys auto shop where he has a complete set of metric and american taps and dies, we couldn't figure out what the heck it was. Is this some kind of British Standard thread or something??

Thanks in advance .. :)
 
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