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August 2018

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Date:
Fri, 17 Aug 2018 14:54:06 +0000
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TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Subject:
PWB PTH mounting Hole Damage
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Fellow TechNetters:

   I am searching for hardware mounting selection guidelines for the purpose of avoiding future damage to PWB PTH external copper pad by retaining screw head.

Example pics and current dimensions have been sent to Steve Gregory, [log in to unmask]<mailto:[log in to unmask]>



Givens:

-          PWB PTH Slot Diameter, 138.450 mm

-          Screw Head Diameter, 159.640 mm

-          Screw Shank Diameter, 87.740 mm

-          Potential mating overlap, 21.190 mm



Victor,

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