Uxcell a16033100ux0532 M3x5.5x2mm Zinc Plated Square Machine Screw Nuts Thread size: M3/0.12"; product Name: square nut Material: zinc plated(carbon steel); weight: 32G Package Content: 100(+/-2%)pcs x square nut; main Color: Bronze tone Height: 2mm/0.08" Width: 5.5mm/0.22"