High Performance Kibblewhite Black Oxide Finish Cylinder Studs Set/16. 

Kibblewhite cylinder studs are manufactured from tough steel, offering high-tensile and yield strengths, with just the right amount of ductility to resist fatigue and stress. The case end threads are designed to maintain good thread contact at high temperatures.

Fits: Honda CB750K (1969-77),
CB750F (1975-76) Supersport