Spacer, Spacer Type Round, For Screw Size M13, Overall Length 15 mm, Inside Diameter 13.3 mm, Outside Diameter 18 mm, Retaining Rib Diameter Not Applicable, Material Nylon, Finish Plain, Pack Size Small Pack, System of Measurement Metric, Hex Width Not Applicable, Color Black, Hex Width Tolerance Not Applicable, Inside Diameter Tolerance +/-0.254 mm, Maximum Temperature 185 Degrees F, Outside Diameter Tolerance +/-0.381 mm, Overall Length Tolerance +/-0.127 mm Nylon round spacers are nonmagnetic and nonconductive, making them ideal for use in electronics applications. Lightweight and corrosion resistant, they are often used instead of metal fasteners in light-duty furniture applications.Round spacers are unthreaded fasteners that have a cylindrical shape and a smooth exterior for a clean,.