Universal Turntable Headshell Cartridge Mounting Kit Genuine High quality Audio Technica turntable supplies Unsure of what size you need? - this kit will fit all cartridge types 2 x 6 mm Cheesehead Cartridge bolts (screws) 2 x 8 mm cheesehead Cartridge bolts 2 x 10 mm cheesehead Cartridge bolts 2 x 12 mm cheesehead Cartridge bolts 8 x Matching round nuts Supplied with the correct Nylon Washers to give a vibration free mounting and a more stable, secure attachment Why use Aluminium and not steel or Brass? Ask Audio Technica - one of the largest Audio Cartridge manufacturer in the world - its what they supply with all their cartridges.....simple! Its high quality, strong and very low mass perfect for Audio Cartridge mounting