Tap drill size
15/32-32 is the US standard for toggle switches. 1/4-32, 5/16-32 and 3/8-32
are also electronic thread standards. I used a 3/8-32 tap to make a heatsink
that screws onto the F connector on a USB TV tuner that ran hot. 5/16-32
fits a Schrader tire valve, loosely.
A toggle switch is exactly what I want the tap for. The problem is that the plate is 10 mm thick, so there isn't enough axial length for the retaining nut and washer.
By the way, what size is the Schrader valve thread officially?
Thanks!
Chris
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