UNF Stainless Steel Nyloc Nylon Lock Nut 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4

METRIC ZINC YELLOW NYLOC NONE SERRATED FLANGE LOCK NUTS M6 M8 M10 M12 DIN6926

Metric Zinc Plated Steel 10.9 Grade High Tensile None Serrated Flange Nuts