Threaded footers for my DIY audio rack


I am building a 3 tier rack that will have shelves 2" thick, 46" long and 18" deep.  The uprights will be 2" thick, 5" wide and 32" tall, two on either end of the rack.  The rack itself will be approx. 200 lbs.  Total weight with equipment will be approx. 375 lbs.  
  I am looking for suggestions as what threaded footer I should be considering for best performance.
mckinneymike
Miller.
That is one SERIOUS TT rack.

Were you planning on it still to be standing even if an earthquake leveled your house!
And still playing no doubt... Lol.

Very nice looking piece of kit in all honesty.
For the record I do like Herbies gear, using there stuff under my amp and speakers.
If memory serves me correctly they also do very heavy duty versions rated at 200lb plus I think.
Look at Woodcraft.com or Rockler.com, they have a nice variety of feet, casters, etc.