RV3.5-4 Black 14-12AWG 37Amp Ring Terminal (Pack of 25)

The RV 3.5-4 Black Insulated Ring Terminal is a professional-grade solderless electrical connector designed to provide a secure, low-resistance connection for stranded copper wires. Engineered for wire cross-sections ranging from 2.5mm² to 4.0mm² (approximately 14–12 AWG), it features a 4.3mm ring (M4) specifically sized for standard 4mm bolts and screw terminals commonly found in terminal blocks and consumer electronics. The terminal is constructed from high-conductivity electrolytic copper with a tin-plated finish, ensuring excellent electrical flow and long-term protection against oxidation and corrosion. Its black-coded vinyl (PVC) insulation sleeve prevents accidental short circuits and includes a flared entry for smooth, snag-free wire insertion. When properly crimped, the RV 3.5-4 creates a durable, vibration-resistant joint that is ideal for control panels, household appliances, and automotive wiring projects.