Need some tough nuts for your projects? This set of 50 M7-1.0 metric serrated flange lock nuts is perfect. They're made from steel with a zinc plating to resist rust, and the serrated flange keeps 'em tight without loosening up. Thread size is 1.0, and they've got an external hex drive so you can use a standard wrench. Brand is WARREN FASTENINGS SOUTH, and the MPN is 88279. They come in a neat retail package, brand spankin' new. Great for cars, bikes, machinery, or any DIY fix where vibration might be an issue. These aren't your average nuts – they're lock nuts, so once they're on, they stay put. No UPC, but who needs that when you've got quality? Stock up now and you'll always have the right nut for the job.