"No Hex Key?:" $ Q# f# P' n& r( o/ u) P Y# I) [( s# o4 e) i) x1/2 3/8 1/4 inch rod couplings can be used in a pinch if you need a hex key or allen wrench. insert rod coupling into hex opening in lug set screw and turn with wrench. , }6 N; U! v* S. S) p" ]! }# V " n& k- Z+ g' |( ]1 _% i) C