as far as I understand one of the first things I do is fit the floor pan to my MK when I get it, Ive been wondering instead of rivets is there any issues with tex screws???(spelt right?)

used a couple the othe right they go straight through thick metal and are very strong no pre drilling etc etc saving so much time

any ideas anyone

chris

would it be this sort of thing you mean? (see pic)

if they've got a bigger head than a rivet, you might struggle to get the side panel on. if they are the ones below, they'll look nasty (under the floor i know) and think of all the extra drag caused by the heads

stick with rivets imo unless you're going for a 'quick' build.
tom
Rescued attachment screw.jpg

hi mate youve got the right bottom half but the top is a very low dome shaped philips head so shouldnt cause any probs

Only disadvantages with them (i presume there the sort with drill on the end and slef taping bolt behind) I can think of off top of my head is they stick out 1/4 inch (not too bad but nots as smooth as rivets) and theres the potential for them to come undone.

thread lock,?

if you use the philips head type they stick out no more than a normal dome head screw

Pop rivets aren't exactly infallible. If it's Sikaflexed first and left to go off then screwed on it should be pretty secure. There should be enough flex in the sides to clear the heads if they're same as the domed ones I have.

there is plenty of room for them if they're like pan head self tappers, probably about 6-7mm gap between side panel return and floor, but was just concerned that the hex head ones would foul.

hth
tom

yes thats great info mate could be onto something new

chris

Not sure if there is enough metal in the chassis tubes for them to bite though - 1.6mm???

Pat...

the thread pitch looks quite fine, much finer than a self tapper, so they might hold alright.

time for some destuctive testing methinks
tom

and methinks azwelly

Apart from saving a bit of time drilling, I don't see the advantage of using these instead of ordinary rivets.

In fact you'd probably spend more time applying threadlock & screwing these in than you would pulling up a rivet, so the time saved would be negligable.

And then theres the weight.......

All in, they must weigh a fair bit heavier than rivets.

Rivets everytime along with sikaflex because this all adds to stiffness of the chassis without adding any real weight.

Cheers
Mark

there pretty light though?

and drill straight in so no messing!

quote:

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Originally posted by zxrlocost
there pretty light though?

and drill straight in so no messing!

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ok fair enough

I'd also say it is a bad idea.... yes you could thread lock them but my understanding is that the alloy pannel adds to the chassis ridgidity. and securing with 1.6mm of thread just wont be enough IMO.

On my last kit I used 2000 rivits to secure the alloy pannels on along with the sicoflex. Over the years that I owned and abused it I never found one loose rivit.