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Hank nuts
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19-04-2018, 08:09 PM
Does anyone have a source for hank nuts in 1/4 BSW? I've been online and found a company that can supply but in 1000 pieces minimum, which is about 990 more than I can use.
Erich in Seattle 
19-04-2018, 08:15 PM
VErich
Is that an American terminology, what’s a hank. In UK it’s a coil of rope , wool or the like.!
I am always interested in any information about Rosengart details or current owners.
19-04-2018, 08:18 PM
Could it be these, Erich?
https://www.ebay.co.uk/itm/10-x-GKN-NETT...1079567604 Just the right number for your purposes! Regards, Stuart (19-04-2018, 08:18 PM)stuartu Wrote: Could it be these, Erich? Yes stuarts, you are correct in your assumption. We used to use these years ago in my factory. (19-04-2018, 08:09 PM)Erich Wrote: Does anyone have a source for hank nuts in 1/4 BSW? I've been online and found a company that can supply but in 1000 pieces minimum, which is about 990 more than I can use. Hi Erich, see stuarts blog below. These are what we knew as Hank Nuts or Hank Bushes. (19-04-2018, 08:18 PM)stuartu Wrote: Could it be these, Erich? Yes stuarts, you are correct in your assumption. We used to use these years ago in my factory.
Thank you Stuart and Smiley, these are exactly what I need. I still have to find a tool to set them. Derek, these are captive nuts. Other types are rivet plates which are riveted on and hold a threaded portion or sometimes have a nut that is slightly loose to allow for imprecise fitting. Here in the US we also call them Kwik nuts or rivet nuts or nutserts .Their purpose is to have a captive nut so a wrench doesn't have to be used on both sides. In the case of the Ulster, according to Chris Gould, there were/are hank nuts that attach the dash to the dash supports. Also the rear screws fixing the side panels. Also on the Ulster cockpit, rivet plates or rivet nuts are used under the inspection/access panels for the rear cardan joint and starter housing access. I don't know if the original cars used these or if they just had captive nuts welded on, but I suspect they were likely used. In the end, it saves trying to find someone to hold a wrench, or trying to stretch your arms to put a wrench on something you cannot see.
Erich in Seattle
20-04-2018, 06:33 AM
Just goes to show that you are never too old to learn, I’ve always called them captive nuts. Two nations divided by a common language.
I am always interested in any information about Rosengart details or current owners.
20-04-2018, 08:38 AM
Erich, Couldn't you use 1/4" UNC rivnuts/nutserts for this? They're commonly available along with the hand held setting tools on your side of the pond -1/4" UNC and 1/4" Whitworth are both 20 TPI. If you do find that the Whitworth bolts are a bit tight in the hole (unlikely) you can just run a 1/4" whit tap through the nutsert/rivnut once it's set in the panel.
Engineering purists will decry putting 55° Whitworth fasteners into a 60° UNC threaded hole, but for attaching odd bits and bobs of bodywork, any loss of thread strength really isn't going to be an issue. 
20-04-2018, 01:34 PM
We used to fit hank bushes by squeezing them with a suitably sized ball from a bearing in a vice. The ball splays out the holding ring. Can only be done on loose panels however. It might be possible to make of a bush to do the same job using the thread in the bush.
Jim
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