"No Hex Key?:" - A8 t8 r9 g/ z' o( c8 n& }2 f: V1 C8 x( L
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. 1 o$ e4 b. B- _+ P0 M! {