$1.99 - 100 Pack. Steel washers are a VEX robot staple. Small, High Precision,Tight Fit. Use on screws or on shafts for of standard VEX EDR sizes. VRC
Inventor's Guide - VEX Robotics
VersaPlanetary Gearbox - VEX Robotics
VEX V5 Competition Super Kit - VEX Robotics
VEX Robotics Nylon Washer, Thin (1/32), 100 Pack - #8 Screw Size, Thickness: 0.031, Outer Diameter: 0.375, Inner Diameter 0.173, 8-32: : Industrial & Scientific
Robosource Nylon Spacer 1/8inches Thick, 1/2inches OD 0.194inches ID, 50 Pack for VEX Robotics: : Industrial & Scientific
VersaPlanetary Gearbox - VEX Robotics
$4.99, 50 Pack - These oversize fender washers with an outside diameter of 1 inch are much larger than a regular washer and help spread the force out
Steel Fender Washer, 1 OD, 50 Pack for VEX Robotics –
VEX Robotics Nylon Washer, Thin (1/32), 100 Pack - #8 Screw Size, Thickness: 0.031, Outer Diameter: 0.375, Inner Diameter 0.173, 8-32: : Industrial & Scientific
Robot MarketPlace - VEX Robotics Hardware and Metal Kit
Shaft Collars - VEX Robotics
What makes something good build quality? - VEX V5 General Discussion - VEX Forum