This listing is for one 46319 12mm-1.5 Bolt, for the Gribaldi Salvia DM Series Disc Mowers. Please reference position 37 in the exploded view of the mower. These bolts are used to bolt the top and bottom cutterbar housing together. We also have other parts for this disc mower available in our store. 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. Part Number: 46319 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.