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telewest cable junction box
When the engineer installed my Telewest cable junction box a few years ago (about 7" x 4" with half sloping on one side) he put it in upside down - that is the cable outlets at the top not the bottom. I need to turn it the correct way up, but it has some strange castellated screw heads securing the top cover. Any idea what they are as I need a suitable screwdriver/spanner.
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