3.2mm x4mm through (unthreaded) brass spacer by TR Fasteners. Dimensions : O/D: 6mm I/D: 3.2mm Length: 4mm Material: Brass Finish: Nickel plated Status: BNS (Brand New Stock) suitable for use with M3 or smaller screws RoHS compliant: YES ***Price is for one pack of 10 spacers ****