Are SS cam locks worth it? how good are Polypropylene

[Newtons Shed]

Yeah you're right 15mm male threads, being looking so much at different fittings.
would the 15mm threads take 1/2" fittings?

 

[Aleman]

Yeah you're right 15mm male threads, being looking so much at different fittings.
would the 15mm threads take 1/2" fittings?

15mm and 1/2" BSP are pretty much compatible . . . I don't think I've found an incompatible match yet