Once drilled the deepened hole is threaded with a conventional 8mm metal worker’s tap. Rather conveniently a tapping tool works equally well in timber as it does in metal as it was originally designed to do.
This picture shows one bolt in position. The thin wedge device is used to deposit Aradite deep into the hole.
Here are two bolts in position waiting to be sawn to length.
And this is the final result with new nuts and washers. Ready to be bolted back onto the table from which it came.