[Antennas] pipe tap drill size
rbethman
rbethman at comcast.net
Thu Mar 11 14:13:29 EST 2010
The appropriate drill size for using a 1/4 20 tap is 13/64 ths.
Bob - N0DGN
On 3/11/2010 2:05 PM, r miles wrote:
> I am putting two gusset plates to hold truss supports on my homebrew 30m Moxon. I'm using 1/4'' X 20 bolts. It's been 40 yr.s since I worked in a machine shop. Don't have the proper hole size chart for taps anymore. I assume the hole size to be threaded 1/4 x 20 is less than 3/16''. Anyone have a chart showing the proper size.TNX
> K9IL
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