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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
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?
ozzy's avatar
ozzy OP
7,466 posts
 
Well one would be resale value. Or perhaps it would change the engineered design.
Still that is an option. Thank you.
brf
1,715 posts
 
I respect your concern, but I would drill the Stillpoints before drilling the Andra II. Please keep us updaded on your progress.

As an aside, I am very surprised that Stillpoint does not offer thread size options, especially considering the price!
audiopoint
208 posts
 
Good-day Ozzy,

Machine shops will cost you an hour of time in set up alone.

These should do the trick.

E-Z LOK Corporation - Thread Inserts part # 319-4 – Thin Wall – Internal thread 1/4”-20, External Thread 3/8”-16

Call us and we will be happy to answer all of your questions and provide you a solution.

Robert
Star Sound Technologies, LLC
ozzy's avatar
ozzy OP
7,466 posts
 
Audiopoint, Thank you for your help. But, the item you refer to looks to be only about 3/8" long. It needs to be 1 and a 1/2" long in order to tighten into my speakers which have a recessed hole.
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