These wing nuts, also sometimes called butterfly nuts are easily tightened or loosened by hand and without tools.
Our wing nuts are of course 316 Stainless Steel, a highly corrosion resistant marine grade alloy that can be used in saltwater environments.
Bought some carriage bolts washers and wing nuts. Fair pricing. Shipping was fast, the packaging was great and arrived sooner than expected! Great customer service, too. Thank you!