In this schematic the "Clamp D 15.5mm" is used most often.
The most reasonably priced component used on the Civic 1993 (p) 2dr Dx (ka,kl) Master Power is the Nut,hex.,8mm.
A sample from the products for the Master Power include: Yoke, Push Rod, Stay,m/p Tube, Pin, Pedal, Master Cylinder A.