DID X-RING 525VX Steel Connecting Link Rivet Type (ZJ)

MASTER LINK FOR VX RING DID CHAINS 

THESE ONLY FIT DID CHAINS OF THE SPECIFIC SERIES THAT YOU SELECT.

FOR EXAMPLE IF ITS ZVMX2 It will only fit VX3, If its VX it will only VX. 

You cannot just install a rivet on any other chain brand other than DID or even on other chain series by DID. It's unsafe to install it on wrong series or different chain brand.