3/8"-16 Grade 8 Hex Nut - Yellow Zinc Plated 3/8-16 grade 8 hex nut (coarse) yellow zinc HN83816 $0.081/ea
5/16"-18 Grade 8 Hex Nut - Yellow Zinc Plated 5/16-18 grade 8 hex nut (coarse) yellow zinc HN851618 $0.063/ea
5/16"-24 Grade 8 Hex Nut - Yellow Zinc Plated 5/16-24 grade 8 hex nut (fine) yellow zinc HN851624 $0.072/ea