A new-to-us Fiskars scissors arrived with a loose pivot of a type I’d never seen before:
The nut fits into the slot in the upper blade, making the nut and screw turn together. Although there’s no torque between the two, the screw had no threadlock and, well, loosening happens.
The pivot parts include a thin washer between the nut and the lower blade to reduce friction between the moving parts:
With a dot of Loctite on the screw, it’s ready for reassembly:
After which, a drop of oil made it sooo smooooth.
That was easy …