Polished stainless steel wheel nut kit for your Yamaha YFZ350 Banshee. The metric nuts are A4-80 stainless steel which is a metric grade 8.8. The other stainless kit sellers use grade 2 nuts in their kits. This is one area that you need the extra strength. We put in the split lock washers. Some people want them, but most don’t use them. All washers, and nuts in the kit have been polished. This kit fits all Banshee’s.