"No Hex Key?:" : ~; T r: i& h" s; m 8 P8 v: ^) a8 n" `- ^" j5 Z6 p1/2 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. : |3 ^ Q1 F9 L; v- m1 _" _ W8 W) J3 T- ]9 ~