Seimitsu K-N 30mm Black screwbutton nut

The Seimitsu K-N 30mm screwbutton nut is a replacement for a worn or broken nut for the Seimitsu PS-14-KN series screwbutton.  There are additional benefits to the K-N:

• Can be swapped with the Sanwa OBSN-30mm screwbutton.
• The thinner K-N screwbutton nuts allow Sanwa OBSN-30 screwbuttons to fit into a MadCatz TE. The joystick mounting brackets get in the way of Sanwa OBSN-30 screwbutton rings, which are bigger than the K-N.