"No Hex Key?:" 8 V, g2 J) |$ n6 J/ M' I( [- S 0 Z' Z6 a% _3 n* p0 Z- S& |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. $ U; V" X6 _+ y0 m5 {6 P# V: |9 [3 L! [" `2 F2 b