METRIC HEXAGON HEX NYLON INSERT LOCKING NUTS BRIGHT ZINC PLATED DIN 985. Key Features M5 Metric Thread Size (5mm) A2 Stainless Steel, 18-8 or 304 Stainless Steel. Thread Size: M5 (5mm) Nut Width 8mm Total Thickness 5mm Happy to sell a different quantity up to 500 nuts
eBay