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MG Midget and Sprite Technical - Naming fasteners (NMC)

Can someone tell me what the correct name for a type of car bodywork fastener that seems in common use these days, though not, thankfully on Spridgets!

It has a large flat head, about 1" in diameter, is usually a torx or posidrive head and a 6m threaded stud. Generally seem to be made of a crap "rust-so-quick" steel, although often plated. I presume that they have a proper name; without a name for the things it is difficult to track down a supplier!

Guy
Guy

is it a doobey-thing-a-ma-jig?!

sorry, I'm being unhelpful as ever!

Could you not substitute it for a standard bolt or something? If its standard M6 thread...

Tho there is probably a reason why you haven't already...

Cheers,
Malcolm
M Le Chevalier

Guy putting a photo up of the offending piece may get suggestions or even the correct name/description
N Atkins

OK Nigel,
But I thought that would be too easy!

Malcolm is right, I could substitute with a standard bolt and penny washer, but the fasteners get used where the head needs too be fairly flush with the surface, generally fitting within a slight crater. A bolt head would stand proud.

Guy

yes see what you mean

what make/model of car is it from, perhaps you could look for it from that direction
N Atkins

Alfa.
Modern alfas are far less rust-prone than older versions like the Alfasud, but its obviously in the DNA and still breaks out in the odd component.

But these fittings are common on lots of cars, just assumed they would have a special name for them (other than the one I use when they shear off)
Guy

It's a countersunk, flat-head torx bolt, isn't it?
Adrian Jones

Use an M6 countersunk screw? or M6 cheese screw or pan head screw (I think thats what they were called!)?!

Malcolm
M Le Chevalier

Yes they are crap aren't they!
Tarquin

Adrian,
I guess that sort of describes it, although it should be a machine screw, not a bolt. I thought they might have a special name like a "$%^&*! Fastener". That's not supposed to represent what I call them, but maybe a designer's name. e.g A Ferdinand Fastener. But I guess if I had designed the thing I wouldn't want my name associated with it for evermore!
Guy

Same as the Honda Civic front bumper bolts (EG Civic) only they are a philips head.

As mentioned above, a pan head stainless bolt would be much nicer with a penny washer.

Having said that - the likes of pro-bolt also do the M6 countersunk bolts with washer to suit most applications such as bumper mounts and they are anodised alloy to add to the gucci-ness ;)
PeterJMoore

You won't find this part in the parts lists because it is used as a method of welding a stud through the bodywork. A typical example is the stud through the boot (trunk!) floor used for hanging the exhaust system. The most easily viewed item is the silencer (muffler) bracket.
AG Martin

AG - think you will find the fasteners being discussed are not what you describe; they are not designed for welding, they have a tool recess in the shallow head, either Allen key or torx bit.
David Smith

This thread was discussed between 30/06/2011 and 04/07/2011

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