"No Hex Key?:" ! _: e% D3 c o6 c* x2 U' [; B+ | [. {( T0 \2 P
1/2 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 `. q; S, n Y; ?( r4 m1 [