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Seatbelt Bolts


geoffbeaumont
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Does anyone have the spec of the bolts that go through the floor of a RR classic to attach the seatbelt brackets to the brackets underneath. Think I need to get some longer ones now I've got the alloy floor in there.

Could anyone with a corrugated alloy floor take a look and see how their's are mounted? As far as I can see the only way to do it is to sit the bracket across the corrugations and fit a longer bolt. The bolts come through at the bottom of corrugations - did wonder if it might fit better the other way up, but it's a second hand floor and covered in underseal on the other side.

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Geoff,

Don't know how they are monted on floors without the flat recess, but you will need to sleeve the bolt with a bit of thick walled tube to stop it being loaded in bending by the seatbelt loads.

I had wondered about that. Wish I'd paid a bit more attention to how they were done on the truck I broke :( Found the belt brackets from that and they're smaller than the ones from my truck, so though maybe they'd fit into the corrugation, but they don't.

PITA :huh:

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Cheers both!

I'll have a root in the parts bin, see if I can see anything that looks like those spacers (must have been a pair on the truck I broke :unsure: ). Failing that, does anyone have a couple lying around, or know who stocks them? Guess it'll be cheaper than buying a suitably solid length of tube to make my own.

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Geoff,

I may have them, but its unlikely. i think i've thrown all that stuff out.

its only something to force thelarge loop washer to sit proud of the top of the floor. its not structural so to speak, so anything to raise that belt washer would suffuce.

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Geoff,

As a stop gap you could get away with a stack of washers. As long as the bolt is done up tight against them and the hole in the washers isn't much bigger than the bolt you would be OK.

What you don't want is the bolt bending when the seatbelt pulls on it. The stack of washers or tube will force the bolt to work predominantly in shear at which it is far more efficient.

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Geoff,

As a stop gap you could get away with a stack of washers. As long as the bolt is done up tight against them and the hole in the washers isn't much bigger than the bolt you would be OK.

What you don't want is the bolt bending when the seatbelt pulls on it. The stack of washers or tube will force the bolt to work predominantly in shear at which it is far more efficient.

As a stop gap I've got no seat belts in the back ;)

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