Since the base of the rod antenna is a hole of 8 mmΦ, we made it as a fixture for mounting. I cut off the head of the bolt, brass to brilliant, the ease of processing with suitable hardness is outstanding. Although it is not the original usage, it was hard to get this material in hand, so I got it.
There is no problem in particular. After all it is brass / cloth so you can shave it when you do not feel hooked firmly such as electric wrench box wrench when tightening. The color is also good without dullness.