With a quantity of four pieces, the Stud 8x25 is the most used part in the FRONT FORK (GS400C,EC,N:~F.NO.71031) (GS400EN:~F.NO.504509) diagram.
A sample from the products for the Front Fork (gs400c,ec,n:~f.no.71031) (gs400en:~f.no.504509) include: O Ring, Spacer,front Fork Spring, Boot, Holder,axle.