100 Pack of Low Friction Nylon Washers can be used on screws, shafts, and more. Use to space out items, reduce friction on moving parts, and more. Similar to the VEX EDR Teflon (PTFE) Washers. Fits #8 (VEX screws are #8-32) and many more sizes. Details: Outer D: 0.375" Inner D: 0.173" Thickness: 0.016" (1/64" for very precise spacing) Legal for use on competition robots: Rule R7c permits hardware including washers in various sizes, including #8.