User:Mct/thread-standards

From Pumping Station One
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size pitch tap drill close fit loose fit
no. 6 32 no. 36 no. 27 no. 25
no. 10 32 no. 21 no. 9 no. 7 (13/64")
1/4" 20 no. 8 (13/64") let. f let. h (17/64")