8 5 18 2 July 8, 2019 16 32 64 128 8 5 18 27 5 8 18 24 5 8 18 25 5 8 18 20 5 8 18 unf 2a 5 8 18 unf 2b 5 8 18 unf 2a thread dimensions 5 8 18 unf 2b thread dimensions 2 8 18 5 element 5 8 18 x 1 1 2 8 2 5 x 18 1 3 5 8 18 2b 8 18 5 27 as a fraction 8 5 2 18 is rational
