Good quality and works
I had a few of these with the hex head stripped off.  These things were not easy to find.  I was very pleased that they are identical to the ones I had and fit perfectly.  The original ones I had were used a few years ago to install a mesh cover made by Anchor (I believe).  One recommendation is to keep them clean and lubed every season.  The hex heads will strip very easy if using a drill bit to work with and they're stuck due to dirt or other debris that can get in there over a few seasons.  I nearly rated them a 4 due to how easy the hex head became striped, but they are brass, and brass is soft.  Keep them clean and lubed and this shouldn't happen.  Workmanship on these are very good.
Rating: 5 stars