Flat Washers Made Of Nylon 66 Material, As It Is A Material With High Wear Resistance. High Tenacity And Best Suited As A Mechanical Material Continuous Use Temperature 85 &Deg; C Fuel Ul94 V-2 Characteristic With Good Ductility, Impact Resistance And Energy Absorption Requires Plastic Box: Easy Identification And Divided Storage Box To Keep Your Black Nylon Puck Tidy. And The Plastic Box With A Click, So You Can Ensure That The Box Does Not Automatically Loosen And Fall Off The Washer. Feature: Package Includes: M2 M2.5 M3 M4 M5 M6 M8 M10 M12. Nylon Flat Washers Quantity Package: 700 Pieces Washers Spacers Flat Washers Material: Nylon 66 Nylon Flat Washers Color: Black Working Temperature: -20~85C Package Content: M2 X 5 X 1 (100 Pieces). M2.5 X 5 X 1 (100 Pieces). M3 X 8 X 1 (100 Pieces). M4 X 9 X 1 (100 Pieces). M5 X 10 X 1 (100 Pieces). M6 X 12 X 1.5 (60 Pieces). M8 X 16 X 1.5 (50 Pieces). M10 (50 Pcs). M12 (40 Pcs). 1 Packing Box.