Hello. I need advice on the end pin jack of an archtop guitar.

Situation: first archtop build (f holes). Now the back is already glued to the sides, ready for glueing the top. I will use a Bebedetto tailpiece fastener for fix the tailpiece.

I would need to know first when it is time to install the end pin jack and if it is enough to fix it with the nut or it is better to apply epoxy or something similar.

I have seen in Benedetto's book a end pin jack with a double channel (one channel for the tailpiece fastener and another for the strap, I suppose), but I can't find it. I have a pin with only one channel. it is ok?

I thank you in advance for your help.

Do NOT use epoxy. You want the guitar to be repairable in case the jack goes bad.

StewMac used to sell a double ring jack but don't appear to any longer. This is what they suggest now. https://www.stewmac.com/video-and-ideas ... tructions/

I am personally not a fan of that whole system, although many peoples mileage may vary.
I find a metal bracket screwed to the tailpiece , then, using the end pin jack as a “clamp” sturdier and more reliable.


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I consider this option a very interesting alternative. And do you use a hinge to make the angle more flexible?

I am personally not a fan of that whole system, although many peoples mileage may vary.
I find a metal bracket screwed to the tailpiece , then, using the end pin jack as a “clamp” sturdier and more reliable.


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I tend to agree with you Brad. For the most part, the Benedetto way works well, although the one thing I really don't like about the Benedetto way is the tailpiece fulcrum sitting directly on the top, causing a little dent and finish damage over time. There are ways around this including inlaying a small piece of bone or hardwood in the top.

I had an end pin holding a strap fail. I’ve posted it elsewhere, but it made such an explosive sound I did something involuntary and messy (in the immortal words of Sid the Sloth).

I am not sure what distinction you are making, but it was an end pin Jack which is what I believe the op was asking about.


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I don’t use a hinge I just bend the bracket in a vice.
It doesn’t need to be flexible. I just bend it to the correct angle.




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here’s a picture of a Buscarino Tailpiece with a hinge, and this also shows how it’s attached on the underside.

Sorry, brainfart. I was thinking more the Benedetto system and had wooden pins stuck in my head for some reason.