eMagTech 20PCS PTFE Annular Washer 0.5mm Thick 12mm OD 4mm ID Compatible with Mechanical Engineering 3D Printing Electronics

["Compatible with model making, compatible with mechanical engineering, compatible with electronics assembly, and compatible with 3D printing projects.","These PTFE flat washers feature an outer diameter of 12mm, inner diameter of 4mm, and thickness of 0.5mm, ensuring accurate spacing and consistent performance.","Made from high-quality PTFE material, these washers offer low friction, and high temperature tolerance.","PTFE washers provide a smooth, non-stick surface that reduces friction and wear between components.","The set includes 20pcs PTFE washers, providing sufficient quantity for replacement and multiple projects."]