Yes, but they don't do a female 8 mm to 12 male adaptor. Luckily those clever chaps in China offer these for next to nothing!IsoAcoustics makes many, many stud options/adapters in addition to what comes standard. I'm surprised if you needed something they didn't offer...although I suppose that's possible. I have used 1s and 2s on various speakers, and I like them.
THREADED REDUCERS /SELF TAPPING THREADED INSERT /ADAPTERS M3 M4 M5 M6 M8 M10 M12 | eBay
M3x0.5mm(Internal Thread) to m5x0.8mm (External Thread),Length 6mm,SLOTTED.
www.ebay.co.uk
IsoAcoustic include several threads, but they all asume a female thread at the speakers side - AG's adjustable spike devices are male thread after the spike is removed - perfect For Gaia II but no good for Gaia i.
I bought my Gaia IIs for fitting to Martin Logan speakers but these have a very deep socket with the first 20 mm for a hex spanner to be used to remove the amp tray and deeper in is the 8 mm thread. Once I advise IsoAcoustic of this, they made some adaptors with extra long threads for ML owners. Very good service. Peter