finger 2 is generally a mechanical spring and an electrical contact each rack bar 1 pivots on a bearing so that the fingers 2 can point forward and down around 45 degrees fill position and also forward and up around 45 degrees drain position each finger 2 causes the part to become an electrical cathode in the plating process to achieve electrical conductivity and to allow rotation of the rack bar 2 an electrical wire or other connection 4 completes the circuit between the fingers 2 and the rack bar 1 above the rack frame 1 an actuation bar 7 is mounted so that pushing downward on it causes a pair of springs 6 to compress driving a mechanism that forces each rack bar 1 to rotate causing all of the fingers to pivot from the down or fill position to the up or drain position a rack hook 9 allows the rack to hang on the rail during processing on the plating machine parts can be fitted onto the multiple fingers where they are firmly held for plating fig3 4 show an embodiment of a mechanism by which the fingers 2 can be rotated from the down or fill position 2 b to the up or drain position 2 a the rack bar 1 is free to rotate on pivot bearings on each end that are attached to the rack frame a mechanism causes the rack bar 1 to rotate in such a way that the fingers 2 shown in fig4 move from an approximately 45 degrees down position 2 b to an approximately 45 degrees up position 2 a fig5 shows a close up view of several lug nuts 8 snapped onto pairs of.