The set consists of:
4 off 7/16" BSCy nuts
3 off 1/2" x 20TPI small hex nuts  
 
They will fit Heavyweight Triumph forks from the 1930's.
 
The list of models these fit include: 
T90
T100
5H
5S
5SE
 
We also sell the spindles and knurled washers. Take a look at our other items for these.