This kit contains 5 pairs of sizes. Each size comes with its own nut and washers.
Compatible with most record player brands, including:
Akai, Acoustic Research, Audio Technica, Dual, Empire, Harman Kardon, Hitachi, Japan Victor Company (JVC), Kenwood, Lenco, Linn, Luxman, Marantz, Mitsubishi, National Panasonic, Numark, Ortofon, Onkyo, Philips, Sansui, Sanyo, Sony, TEAC, Technics, Yamaha and many others.
Thorens TP-11 and TP-16 headshells use a smaller screw size. This product can be found here.
Instructions on mounting a headshell correctly can be found in the following videos: