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Stillpoints Ultra SS adapter needed, help...

I just purchased 8 of the Stillpoints Ultra SS for my speakers.
My speakers are the Eggleston Works Andra II. They use a 3/8"-16 thread and the Stillpoints use a 1/4"-20 thread. Stillpoints can provide an adapter but only up to 5/8" long on the 3/8" side (speaker side) and the Andra II's looks to need about 1 1/2" long.

Do any of you know where I can purchase such an adapter or even what its called so I could search the internet?
128x128ozzy
ozzy's avatar
ozzy OP
7,207 posts
 
I just added the pictures of the spikes on my system page.
theo's avatar
theo
2,659 posts
 
Looking at your pictures and being unfamiliar with the Stillpoints. I am curious if the stud can be removed from the Stillpoints? If so the I would remove them and drill and tap the new holes to accept the 3/8" thread you need.
I think and adapters are going to eventual force the 1/4" stud to fail. Just my immediate impression upon looking at the pictures you posted.
davehrab's avatar
davehrab
380 posts
 
Never easy is it (;-)
ozzy's avatar
ozzy OP
7,207 posts
 
Theo, Drilling into the Stillpoints does not seem to be an option. But, I agree with you the 1/4" thread size at the Stillpoints is a concern, my speakers weigh 215 lbs.
I wonder if I should drill a new hole in my speakers near the original made for a 1/4" thread? Then the shaft doesn't need to be too long.
brf
1,715 posts
 
Drilling into the Stillpoints does not seem to be an option

Based on pictures only, it looks like a quality machine shop could easily re-tap the Stillpoints to a 3/8" thread. What's your concern?
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