Spring Information
Helical (wound in a round shape) springs of round wire will need a description to define the Coil Diameter, Wire Size, Number of Coils, and a Type of End. The Coil Diameter could be specified as an Outside(O.D.) , or Inside Diameter(I.D.) or even the Mean Diameter(average of O.D. & I.D. used for calculations). The Wire Diameter and Number of Coils may be defined in a way other than actually calling out the size and count, by a rate or known fixed load or torque requirement as example, but if known it is best to at least list as a referance.

Torsion Springs
Position of the arms is very important.
Torsion springs are very difficult to communicate without a print or detailed drawing. If you don't have specifications or a print to send then call or write (email / fax) us and we can walk through the specifications with you.