(Black) 140pcs Hexagonal Nuts In M2/M2.5/M3/M4/M5/M6/M8/M10 Sizes PA66
These hex nuts are made of PA66 eco-friendly nylon which has good acid-base resistance and insulation. Material: PA66 eco-friendly nylon. Hexagonal shape has 6 sides that gives a good granularity of angles for a tool to approach from.