I measured my tension rod screws and they came out to be 2 and 1/2", but these Gibraltar screws I found were 2 and 1/4". I measured from the bottom of the head to the tip like I saw you were supposed to measure.
Is there a 2 and 1/4" and 1 and 2 and 1/2" screw?
http://www.indoorstorm.com/Gibraltar_Tension_Rods_214_Pk_Sc4c-p-168.html
If I bought 15pks of these that would take care of my toms and snare and only cost $53.00 plus shipping.
That is not too bad.