This listing is for a set of 10 5x13 mm rivets For Gribaldi Sickle Bar Mowers. This is the standard rivet used for most of the sections and guards on both the older 2401 and newer 394 model mowers. Part Number: 80510 QTY.-10 We sell many replacement parts for the most manufacturers of tillers, finish mowers, spreaders, 3-point hitch hay tedders and sickle bar mowers. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.