User:Mct/thread-standards

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")