Thanks to the copper coating used in the screws, we use their maximum efficiency to ensure good welding and, moreover, we do not overheat the sheet from the inside and around the weld. Technical data: Head shape: round Standard Type: GB Material: Copper-coated steel Thread Specification: M8 Screw Length: 30mm A pack of 10 pcs. https://elecena.pl/product/23185150/m8-spot-welding-screw-copper-coated-10pcs 2023-04-09 https://elecena.pl/product/23185150/m8-spot-welding-screw-copper-coated-10pcs 2025-10-29