bear the bear
Is a real bear
6061 vs. 7075Good to know - more than twice the price tho.

What are the Differences Between 6061 and 7075 Aluminum? - Metal Supermarkets
Two of the most popular aluminum grades for structural applications are 6061 & 7075. Explore their differences to choose the right metal for your project.

You said you rounded the head, that's why... there is a price on quality