Cheap And Discounts 1/100 pcs/lot Hexagon Hex Nuts M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 Black Oxide Carbon Steel Metric Nuts Wholesale. Buy Directly From Merchant wuhushiyu Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.