I'm looking for some small SS u-bolts and plates that I can bolt to one of the cross beams to clamp the bottom of the Mainsheet hoop to (the original carbon footing has disintegrated and can only be partially repaired)... any ideas where I can get them with about 20mm internal diameter and 50mm length ?

Suggest Seasure
 
Try looking on www.sailboats.co.uk  

www.u-bolts-r-us.co.uk/125469-t316-stainless-steel

look at https://www.sea-sure.co.uk/categories/dinghy---deck---sail---manufacturing/%22u%22-bolts-%26-general-hardware
..think they sell direct these days

 Thanks all, sorted by Seasure.