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MG Midget and Sprite Technical - What are these threaded studs called?

Does anyone know the correct name for these? I've tried various descriptions in searches for them on the web, but can't find them.

Anybody know who sells them?




Lawrence Slater

I have never seen studs like those. What are they used on?
Sandy
Sandy

Collected bolts.
Pete Ottewell

Yes, a bit of a clue might be helpful, Lawrence.
Dave O'Neill 2

id think everyday hardware would replace it, grade 3, 5, or 8 you could grind the heads to shape if you needed the look
Prop and the Blackhole Midget

Collar bolts.
Pete Ottewell

These came from the slip ring that collects the earth for the horn push on a steering wheel. But they are also found on the back end of some gauges to hold the clips that hold the gauge in the dash.

But what are they called?


Lawrence Slater

Collared studs?

http://www.bpirwin.com/csm2013/collar-studs/
Dave O'Neill 2

There's a company called Normandy fasteners
They do something called clinch fasteners but they are fully threaded. I've never used that fixing from them but I do get rivnuts from them from time to time and there pretty helpful
Dave Pratt

If you type in square head.collor bolts into google images there are photos that look exactly like your showing

Prop
Prop and the Blackhole Midget

I take it that the square head isn't just a variation to take spanner flats. It's for fastening through a squared hole in sheet metal and then being peened over, probably by machine during manufacture.
Guy W

Thanks chaps. I knew I'd get the answer on here. I'll check out those places.

This is what I extracted them from. It's the horn slip ring from my Consul Capri. Rather rare, so I'd like to be able to restore it in order to use the original steering wheel on it again, for future sales purposes. If you thing there are Spridget purists, you wouldn't believe how anal some Consul Capri and Classic followers are. lol.

They are in the way when I fit the ring to my Mountney boss adaption, so they had to come off. Yup that's exactly how they fit guy. I had to grind off the peened over section and punch them through. It may be possible to re-use mine, but a lot easier to use new ones if I can get them, and nice to find the original item, -- coz even I can be anal sometimes too. LOL.

PS. I might try a small blob of weld and a file, to restore the square section. It'd probably work just as well, but I've got so much stuff I'm doing at the moment, it would be so much easier to just buy them.


Lawrence Slater

He he - it looks like a mini brake drum!

From the Stillson jaw marks on them I assume someone has attempted to unscrew them at some stage in the past. Given that they don't take any great load you may find it sufficient to re-insert them and just use an epoxy adhesive/ filler like JB weld. Welding might be a bit ferocious for them if they are some sort of low-grade alloy.
Guy W

Yep. I suppose it does look like a brake drum. Might be useful for a toy car. ;).

I wonder who could have clamped them in a pair of plier jaws and tried to twist them out, before punching them out? lol.

JB weld might work, but probably needs more clamping than that, as the chrome horn ring is sprung off those threaded studs.




Lawrence Slater

Ah yes, if that is the arrangement then they will be under a bit of tension. Especially when you have to thump your fist on the horn to clear a way through the swarms of illegal immigrants in Tunbridge Wells! ;-)
Guy W

LOL. Nah. Run the buggers down. ;).
Lawrence Slater

This thread was discussed between 14/11/2015 and 15/11/2015

MG Midget and Sprite Technical index

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