Any good hobby shop, especially where the RC nuts play, will have spring wire in any size,
in this neighborhood of sizes. They all need it for their suspensions and elevators etc.
Comes in foot long straightened pieces, just right.
Mcmaster will sell it to you by the pound, and its 1/10th the price,
but then what are you going to do with 932 of them in a tube?
Its too bad they aren't either 032 or 064. I've got a McMaster tube of each of these sizes.
yours Scott