ASTM A194 Grade 8M Hex Nut, Heavy Type, Stainless Steel, M16
Metric Hexagon Nuts, ASTM A194 Grade 8, 8A, 8M, 8MA, M8-M48
Metric Hex Nut, ASTM A194 2H, 2HM, 4, 7, 7M, 16, 8, 8A, 8M, 8MA