M3 - 3mm HEXAGON NUTS FULL HEX NUT BRIGHT ZINC PLATED DIN 934
M3 Hexagon Nuts (DIN 934) - Bright Zinc Plated Mild Steel (Grade 8). Hexagon steel Nuts are intended to fasten screws and bolts, when used in conjunction to unthreaded holes. Thread Size M3 (3mm). Nut Thickness (T) 2.4mm.