Doubt it. You could probably get a same brand name replacement if you're willing to search and e-mail and phone, but why spend the money and time? A bolt, a couple of washers and a nylock nut (all SS) from the local hardware store and you're good to go.
jky
Should probably add: You'd most likely have a lot easier time buying a new mount than sourcing OEM hardware for the mount. Probably wouldn't be all that much more expensive, either, when all's said and done.
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