Clock Nut

Many late Springfield cars had Seth Thomas (and perhaps other manufactures) clocks that used a large light alloy cast nut for retention to the instrument panel.  These original nuts suffered from intergranular corrosion in many cases.  The SGA has duplicated the nuts in  a high strength light alloy that does not exhibit this characteristic.

The nut can simply be screwed off the back of the clock and the new nut screwed on to replace it.  Hand tight is plenty...while the new nit is very strong, the clock cases aren't.  This solves an old and too frequent problem.