These were made at the request of a customer. Thickness: 5mm, 5 M8 holes, 4 of which are threaded Bolts in the image are also included. Available for those who want them. The material is high-quality, high-purity aluminum, an original product from a solid flat plate. Comparing only electrical resistance, aluminum follows silver, copper, and gold, and has excellent electrical conductivity, second only to copper and gold. The resistance values of gold and aluminum are almost the same. The resistance value is about 1.5 times that of copper. Aluminum is lighter than copper, so when converted to the same amount, it conducts more than twice as much electricity as copper. "Doesn't aluminum conduct electricity??" It conducts electricity because it's a metal. Aluminum is an element, so it won't conduct electricity if it has impurities, surface treatment, anodizing, or Alpina treatment. Aluminum is also used inside capacitors. ~Accessories & Specs~ Part number: One-off product Tapped for 4 M8 specifications. SUS bolt and nut in the image are also included. *The lower mounting holes are also M8 holes. *The dimensions in the image are approximate, and errors may occur due to processing. These are made on the premise of being used exclusively for grounding in earthing tuning. As these are original processed products, please understand that there may be processing scratches, scratches, slight dimensional errors, and distortions. Price negotiations are not accepted. No shipping on weekends and holidays. Shipping deadline is based on the app. #PowerCable #FlatBraidCopperWire #EarthingKit #EarthingTerminal #IgnitionEarthing #DischargeTerminal #MachinoEarthingShop