FOR 50PCS Copper 4mm Post Audio Amplifier Terminal with Spring Inside Lock

Pack of 50 copper 4mm post connectors designed for audio amplifier use. Each Post Audio Amplifier terminal includes a spring inside lock to hold wires firmly and prevent loosening. Constructed from copper for reliable conductivity and long-lasting performance, these 4mm posts are suitable for common speaker and amplifier wiring, repairs, or DIY audio projects. The internal spring-lock mechanism ensures a tight, stable electrical connection every time.