I have two holes with captive threads. Devon, Kombi conversion. Both sides, go with a lap belt that goes on a buddy box in the walkthrough that has an optional sketchy seat back frame. So my bus had 6 seats with "seatbelts" .
I’d have to check when I’m back down the workshop Chris It’s a two hour round trip so not easy to just pop down.
The holes in the tubs should have captive threads, although they may be rotted out (with the panel that holds them).
The metal seems robust, but I'm going to have a proper tap,tap tap at some point soon to check. I'm guessing the nut and bolt is a PO bodge as the short stalk part is the wrong way round for the push button release!
Aren't the threads in the tub a non standard type? Mine in both tubs were a very fine thread that wouldn't accept a standard bolt, or maybe just a brazzer quirk?
Might still be Unified on a Brazzer, although you would think they'd have gone metric (whatever the "modern" size is)
Almost all seat belt bolts worldwide are SAE 7/16" UNF regardless of manufacture, although some people think, wrongly, that they are 11mm.
