ITEM NAME:120 M2 Male-Female Spacer Nylon White Hex Screw Nut Stand-off PCB Assortment Kit.1x M2 Nylon Hex Spacers Screw Kit. Style: M2 Screw. Material: Nylon. Character: Acid corrosive resistance, non-rusting, light weight, Non-Magnetic, good thermal insulation. I send goods within 12 hours.