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Sep 27, 2020 - 4:49:43 AM
1456 posts since 4/13/2017

I buy my standard parts from Saga. Of course, they dont sell top tension parts. But I was wondering...

Would it be possible to use a Saga flange with a Prucha top tension tension hoop, and buy my own bolts at the hardware store?

Edited by - Lemon Banjos on 09/27/2020 05:02:35

Sep 27, 2020 - 5:44:21 AM

Fathand

Canada

11662 posts since 2/7/2008

Is the Saga flange thick enough to thread? My understanding is TT flanges are thicker in the threaded area. Also are the Saga flange holes already too big to be threaded and need inserts?

I put together a Vegavox TT with hardware store 2" long 10-24 Allen Screws which thread into the shoes so I think the bolt idea is OK if you don't mind not having different bolt heads. They are available in stainless too.

After you go through the work and expense of threading and or inserts are you better to just buy the Prucha flange?

Sep 27, 2020 - 5:59:51 AM

1456 posts since 4/13/2017

Honestly, I'm not sure if the holes are too big. I believe the holes are 1/8".

I can buy all my hardware for a standard banjo from Saga for less than $250 (I get a 50% discount), so I'm spoiled and anything more than that seems very expensive. I get flanges and standard hoops for $40.

My plan was to use a Saga flange, Prucha hoop, hardware store bolts, and drill holes through a standard armrest.

Are 1/8" holes too big?

Sep 27, 2020 - 6:48:54 AM

2176 posts since 2/7/2008

I think you should be able to drill from 1/8" to 9/64" then thread for a #8 machine screw, but if they originally had #8 hooks passing through with nuts on the underside, you'll need to go to the next size up to a #10. 
 

I'm planning to do the same thing using a Prucha top-tension hoop with an old bronze flange and I'm debating whether to thread the flange for #10 machine screws or soldering #8 nuts to the underside. I'm planning to use socket head cap screws for the tension bolts. 

Edited by - Quickstep192 on 09/27/2020 06:59:30

Sep 28, 2020 - 11:57:14 AM

RB3

USA

789 posts since 4/12/2004

I'm not familiar with the features of the Saga flange, but in situations such as this where you have a thin section that would allow for only a few threads, you might be able to use a press-in, threaded, "clinch nut" that would be added to underside of the flange. They're available in a wide variety of sizes and configurations. Below is a link to one such insert that's available from McMaster-Carr.

Press-in Clinch Nut

Sep 28, 2020 - 2:12:14 PM

2176 posts since 2/7/2008

quote:
Originally posted by RB3

I'm not familiar with the features of the Saga flange, but in situations such as this where you have a thin section that would allow for only a few threads, you might be able to use a press-in, threaded, "clinch nut" that would be added to underside of the flange. They're available in a wide variety of sizes and configurations. Below is a link to one such insert that's available from McMaster-Carr.

Press-in Clinch Nut


I really like that idea! I wonder if there are any out there that require a slightly smaller hole to be drilled into the flange.

Sep 28, 2020 - 2:45:51 PM

RB3

USA

789 posts since 4/12/2004

Quickstep192:

You might want to do a search on a company name PEM. They offer a lot of different kinds of threaded inserts. There are also a lot other manufacturers of similar products. A Google search on "clinch nut" should yield a number of different sources.

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