Looks good. Do you have a single seal or do you have a seal on the inner surface and the outer surface?
The bulkhead fittings I use have two seals included that may be larger than what your STJ included. I carefully add a tiny amount of silicone to the sealing face of the fitting, add a seal on top of the silicone, add silicone to the face of the seal and then install this to inside of the tube/sphere. I then add silicone to the outside of the tube/sphere then add the outer seal and nut. I loosely install the nut and tighten it later.
Like any gasket, the silicone should set up a little before tightening the nut or the seals will squish out. The minimum amount of silicone possible.
I mask the tube/sphere to keep the surface silicone free.
STJ conversion fittings?
Moderator: bigray57
- thboy
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- Location: Birmingham, AL. USA
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Viking Guy
- Posts: 48
- Joined: Tue Oct 20, 2020 7:20 pm
Re: STJ conversion fittings?
It's is like a gromet, came with the drink dispensers. I bought two of them as they were on sale.
I added a washer to the outside and it sealed it up good.
This is on a big jar with a 3 and 3/4 " opening. Not alot of room for balls to grow, but I can keep my cock ring behind the seal, which is how I have got my best results so far.
The Ikea is a nice vessel but my cock doesn't seem to get hard in it like I can get it with the smaller jars.
I added a washer to the outside and it sealed it up good.
This is on a big jar with a 3 and 3/4 " opening. Not alot of room for balls to grow, but I can keep my cock ring behind the seal, which is how I have got my best results so far.
The Ikea is a nice vessel but my cock doesn't seem to get hard in it like I can get it with the smaller jars.
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cma_throw
- Posts: 135
- Joined: Tue Oct 23, 2018 2:15 am
Re: STJ conversion fittings?
Hey just wanted to say thanks for this link. This bulkhead fitting pairs perfectly with my STJ from Target, as well as my Colder valve.Viking Guy wrote: Mon Mar 09, 2026 11:13 pm
Boeray 2pcs Bulkhead Brass Pipe Fitting 1/8 Inch NPT Female Thread to 1/8 Inch NPT Female Thread Bulkhead Coupling Bulkhead Tank Fitting Frame Hose Connector https://a.co/d/08nh7siY
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shyguy_8121
- Posts: 140
- Joined: Sun Aug 27, 2006 3:09 am
Re: STJ conversion fittings?
After some searching, screwing and gluing (just kidding) I made a plastic STJ conversion fitting from buying separate parts.
Why pay $50 when you can do it yourself?
Why pay $50 when you can do it yourself?