In anticipation of multiple removals of my drivers I made these brackets out of some 1/8" thick steel strap I had lying around the shop. The tapped hole is 8-32 because that's what I had. For strap this thin you'd want some pretty fine threads. You could change the size and configuration to suit your needs.
plus glue, to firm up the wood around those tiny little fastening fins. Woodglue and superglue and urethane glue all work, but I'd stick to the first 2 as I could see urethane expanding out and getting on the outer threads (haven't used that, but have used the other 2).
The Admiral Tunnel Reflex fronm the 60s & 70s had all their drivers mounted with such a fitting.
dave
dave
Depending on the application, hurricane nuts have to have too large a hole and would weaken the baffle as well as stick out past the edge and the whole turning when you don't want them to turn thing. They also couldn't be used if the back of the hole is beveled. They have their place though but so do my brackets.
Figures - I think I have an original idea only to find someone else had the same original idea decades earlier.
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