Product Info Catalog Electrical & Lighting Boxes, Connectors & Terminals Solderless Terminals Crimp Sleeve Connector, Solderless, 12-Pk. Crimp Sleeve Connector, Solderless, 12-Pk. Request a Quote UPC: 32076050221 Manufacturer: Gardner Bender Inc SKU: 390586 Model Number: 20-410 12 Pack, Crimp Sleeve Connector, Solderless, 18 To 10 American Wire Gauge, Zinc Plated Steel, Cooper to Copper Connections Only, UL Listed, Clamshell.