These wing nuts are zinc-plated, which provides excellent corrosion resistance, making them suitable for long - term use in different environments. They are incredibly user - friendly as you can easily attach and tighten them by hand, no tools needed! The pack includes an assortment of sizes from M4 to M12, catering to a wide range of projects. And they come in a handy storage case with compartments to keep everything organized. Features: Zinc - plated for great corrosion resistance; can be easily tightened and removed by hand; no tools required; assorted sizes from M4 to M12. Warranty: 1 - year manufacturer warranty. Customers need to register the product on the manufacturer's website.

Using these wing nuts is a breeze. First, pick the right size nut from the pack according to your project. You don't need any tools; just use your hands to attach the nut to the bolt and tighten it. When it's time to remove it, simply use your hands again. As for maintenance, since they are zinc - plated, they have good corrosion resistance. But it's still a good idea to keep them dry when not in use. In case you notice any signs of rust or damage, contact the manufacturer as the product has a 1 - year warranty. Remember to register the product on the manufacturer's website to be eligible for the warranty.