NOMINAL VS OVERSIZE: The diameter of nominal sized rivets are exactly the specified diameter (i.e. a 1/8" diameter rivet is 0.1250"), and they are used for original installation. Oversized rivets, on the other hand, have a diameter slightly larger than the specified size (usually about 0.0100"), and are used when replacing an original rivet. The larger diameter accommodates the enlarged (swelled) hole produced when the removed rivet was first installed. So remember, use nominal when installing rivets for the first time, and use oversized when replacing a rivet.

CERTIFICATION: We sell Cherrymax rivets in both packs of 50 and 100. The 50 packs are packaged by us (ATS) and do not include traceability (certification) information. Whereas, 100 packs (those with part numbers ending in "C") are in the original manufacturer's packaging which the appropriate certifications and lot numbers. Therefore, if you need certs and traceability, then you must order in packs of 100.