Yes, as usual you are correct.........Craig On Jan 10, 2010, Randall <tr3driver at ca.rr.com> wrote: > I had all hardware except for TRF HU721 (1/4 " by 1 1/2), Could that have been HU712 ? If so, it is a 1/4" UNF by 1.5" bolt, and a 1/4 SAE fine will work perfectly. Randall