A number of folks would like to know the thickness or the diameter of a particular string material. According to BCY Fibers, "All bowstring material is relatively flat in a single strand, so it is not appropriate to publish a diameter of a single strand.The important issue is how
many strands are required to give a satisfactory nock fit."
BCY recommends 12 to 16 strands for a recurve to provide a proper nock fit.
Answered on 5/6/2013 by Anonymous