Screw Connector vs Screwless Connector: Which One Is Right for Your Wiring Project?
Screw connectors use a metal clamp tightened by a screw to secure the wire. Screwless connectors use a spring mechanism that grips the wire automatically when inserted — no tools needed. For projects with large numbers of connection points, screwless connectors reduce installation time by 50–70% and eliminate torque-related failures. For high-current runs above 2.5mm², screw connectors remain the more appropriate choice.