M5 M6 M8 M10 M12 FLANGED NYLOC NUTS FLANGE NYLON INSERT LOCKING NUT ZINC PLATED. Product: Flanged Nyloc Nut. M8 x 1.25mm pitch; 13mm spanner size. M12 x 1.75mm pitch; 18mm spanner size. M10 x 1.5mm pitch; 15mm spanner size.
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