"No Hex Key?:" % m8 d9 ~: f3 _8 L6 D8 |7 V ^8 U# T9 X: I! _
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. 2 W: U3 p. A0 U4 R! m; V. w8 H# o% V( s' S4 \! `2 }! H