The last side of the No 985 plane. The fixture screws (custom made of course) are also going to be used in the fabrication of the plane. They will be bedded in a locking compound.
I have flitted backwards and forwards between this system and the in-situ riveting – they both have their plus points. Same quantity of work with either system. But working with this system puts less stress in the construction.
As you can see from these jig screws they have a precision shank for true alignment.