; d6 b2 s# E7 O; x7 ?, X; n& E7 U1/2 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. / p6 N9 p9 l- ~. ?$ v+ S( I- K) E1 s. R! d: i; R7 f; C