NSi - NSI N-4SP 4 AWG Tinned Copper 2-Conductor General Purpose Split Bolt Connector

All Purpose Split Bolt Connector 4 AWG is used for combinations of aluminum to copper, aluminum to aluminum, steel to aluminum, copper to copper, and steel to copper applications. They have an electro-tinned body. UL listed for copper and copperweld wires only. Includes nut, spacer and pressure pad. Features: Can be used Aluminum to copper (Dual Rated), Aluminum to aluminum, Steel to aluminum, Copper to copper, Steel to copper; Electro-tinned body; UL listed for copper and copperweld wires only; Includes nut, spacer and pressure pad; Tin-plated makes this connector highly resistant to corrosion - Certifications and Standards: UL Listed; UL 486A-486B, UL 486D