SC1; UPC coded; Single sided; Nickel plated brass; Bagged. Sold as one unit. (1 unit = 10 each.) SC1. UPC coded. Single sided. Nickel plated brass. Bagged. Swirl . Manufacturer number: 16010SC1-02. SKU #: 5315288. Country of origin: Taiwan. Distributed by Hy-Ko Products Co.