I'm looking Table 2b (Gen Purpose American Natl Standard Single Start Screw Threads) and Table 3 (Gen Purpose Acme Single Start Screw Thread Data ASME/ANSI B1.5-1988) on pages 1797 and 1799 of the Machinery's Handbook 26.
Table 2b states that the maximum Minor diameter for a 3/4-6 thread is .5633 inches.
Table 3 states that the basic Minor diameter for a 3/4-6 thread is .583 inches.
So which is it?
Table 2b states that the maximum Minor diameter for a 3/4-6 thread is .5633 inches.
Table 3 states that the basic Minor diameter for a 3/4-6 thread is .583 inches.
So which is it?
![[smarty]](/data/assets/smilies/smarty.gif "[smarty] [smarty]")
. The Basic Diameter is the minor diameter of the internal thread. This is not stated on or under the chart. It was is the reading a few pages before (pg 1792)