Typically, the primary reason for replacing U bolts is due to the mast (pole) breaking at the base of the bracket. Despite the mast remaining intact, albeit slightly shorter, the U bolt nuts have become rusted, posing a challenge for removal. If the nuts cannot be undone, it becomes impossible to remove the broken section of the mast. The most convenient solution involves using a hacksaw to cut the U bolts, facilitating the removal of the mast and allowing for the installation of new U bolts.
However, as you are already aware of these details, it is important to ensure that the U bolts you purchase are the correct size for both the bracket and the mast. When you acquire the U bolts, I will provide you with additional information that I have accumulated through years of installing aerials.
And now a bit about packaging
Whenever feasible, we will utilize packaging that we have personally acquired, either from our own supplies or from other establishments. In cases where this is not possible, we will source packaging from a recycling company.