Seat belt anchorage

[SteveH1]

Do the seat belt anchorage tubes have to be that imperial thread or is a metric size suitable
Thanks
Stephen

[flyerncle]

7/16 unf is normal seat belt thread,use what you want as long as they go through the belt,fold bracket to make it stronger and weld plenty on to chassis

[SteveH1]

Wha do u mean bend the bracket i was gonna make the u type bracket like the book

[JasonL]

I think he means like this so you're welding around the foot of an L-shaped tab... Although I decided to cut it from 5mm box section.

[SteveH1]

I see well i was gonna get the 25 mm long threaded tubes and weld it to the bar then a 5 mm plate over it and weld all around that if that makes sense
Thanks

[flyerncle]

What I did was make the actual bracket longer than book and fold the ends over in a long u shape and just weld a nut on instead of tubes.

[TalonMotorFabrication]

What he is trying to say is the bracket is much stronger if can spread the load along the edge of the box section and across the top face of it as well, you then weld effectively all six sides of the bracket. Just go on ebay buy some 7/16 UNF nuts drill an 11mm hole and weld it in place, a little tip grind the plating off the faces of the nuts first.
His brackets and mine look like this....



and I promised myself I was'nt going to post any thing today.

[SteveH1]

Thanks guys

[voucht]

Originally Posted by SteveH1

I see well i was gonna get the 25 mm long threaded tubes and weld it to the bar then a 5 mm plate over it and weld all around that if that makes sense
Thanks

For the upper points on the roll bar, if you have the possibility, the simpler is to drill the cross-bar through, then insert and weld the threaded tube up and down. Very solid, no plate needed, very straight forward. As many others have, I have done that on my car (see picture below).

2014-08-23_15-51-08 by Sylvain ROIG, sur Flickr

Hope this will help

[flyerncle]

That is exactly what "He" meant,Ta.

And put the bolt through plate and nut to center it before welding it.....