New, unused, and unlikely to affect sound quality. These are very expensive, lightweight, and highly durable titanium cartridge mounting screws. SUS304 nuts and resin washers are also included to prevent scratches on the cartridge and shell. 2.5x8mm 2.5x12mm 2.5x16mm Hexagon socket head screws, 2 pieces each of the above sizes SUS304 nuts x6 Resin washers x6 A total of 18 pieces in the set. #MC Cartridge MC Cartridge #Step-up Transformer Step-up Transformer #Turntable Turntable #Analog Record Analog Record #Cartridge Record #Tonearm Cartridge #Record Phono Equalizer #Phono Equalizer Tonearm #Audio Audio Bolt Screw #Head Shell #Lead Wire #Screw #Nut #Washer #Bolt #Screw