I was researching if I could use 'self-tapping' screws on concrete/brick walls and I finally came across this 'spaghetti' system with the wonderful help of a very helpful man at my local Bunnings hardware. This is a 'game-changer' for me! Just fantastic.

My usual videos are short Math videos for High School and University students:
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I also have a 'Free-Camping' in Australia channel:
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