Specifically designed for making positive ground connections with a hole in the tip of the connector to feed ground wire through. GreenGard connectors feature the same live-action as GB WingGuard connectors with knurled wings for a sure grip and greater twisting leverage/torque. In addition GreenGard connectors offer added plating protection for corrosion resistance in grounding applications. Inside the connector a zinc-plated square wire spring ensures a secure connection that resists corrosion. The thermoplastic shell is designed for long-lasting strength and resists chemicals while the deep skirt supports smooth wire entry and coverage of stripped wires. Use for: Ground applications, Building wire, Lighting fixtures, Luminaries and signsEasier to use - New design enables torque-up with improved gripContoured, offset wings enable firm ground connectionsFlame retardant thermoplastic shell resists punctures, cuts, abrasion and corrosionConnectors include hole in the tip for ground wire insertionSolid copper to copper connections only