2 Y& v% x1 A% d0 P, c: Z- H1/2 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. ( ]. E6 k5 N& \" q- X0 Y! c6 L
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