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With the holes drilled in the copper bar now, I could do the assembly of the hardware to the bar.
The centre post will be the connection point for the actual cable to ground. I could not find a round head, slotted, brass screw in the length I wanted but ¼-inch countersunk, slotted were available along with matched brass finishing washers, so I went that route. The two outer posts will be the pair of terminals on the front of the electrical box, upon final assembly. The sets of three brass hex nuts on these posts, directly behind the copper bar, are merely serving as spacers to allow sufficient clearance for the center post, behind the front cover. Without them, the copper bar would simply bend over the centre post when the hardware for the two terminal posts was run home. Next step for this assembly will be to give the electrical box a coat of flat white paint and cure. David |
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