... screwsDia(mm)Length(mm)6356406506606808408508608808100812081351060108010100101151013510160Application environment: solid sand-lime brick, concrete, lightweight concrete, solid bricks, solid pumice bricks, gypsum board, natural stone and ... , metal and plastic door and window frame, metal profiles, insulation materials, metal plates, panels and so on. Wooden structure fastening: with ...