[TowerTalk] UST 572-HDX Tower to Base Bolts

[Les Kalmus]

Does anyone know what grade of bolts are specified for the tower to base 
bolts on a UST 572HDX?
These are 3/4-10 x 2" galvanized and I need to replace several but no 
info in the docs I have.
They are marked as grade 5 (3 tics on the head) but they also have a 
small triangle between two of the tics which I am not sure about.
I have left a message at UST but they haven't gotten back to me.

Les W2LK