Found a hole in the rad this afternoon, so took the bleed bolt off the rad to take some water out to put some rad weld in till the new rad turns up. So far so good, but then took the bleed bolt off stat housing & the bloody thing snapped off
Quick trip down to B&Q at 7.00pm cos no where else is open & as luck has it, they sell a cap in the plumbing section that fits

Happy days...........