"No Hex Key?:" 5 l, V8 j7 w7 } 4 F9 n7 N" v1 t. a, }) k1/2 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. 9 e0 I3 s+ s$ I/ v4 o# Y( a $ d9 S& G2 I& q. r9 s5 A