Clamp-Lockâ„¢ Straight Blade Connector, 20A 125V, NEMA 5-20R, Black & White. Self-centering cord grip helps speed assembly. Removable inserts accommodate the widest possible range of cable diameters. Rugged nylon housing and backbody withstand chemicals, heat, wear and impact. Color-coded levers enable terminal identification at a glance and reduce the chance of wiring errors. Speedy, patented cam-lever termination provides solid, dependable connections. Molded-in guide shows correct wire stripping length. U-drive combination slot/crosshead screws ensure easy assembly. Long, deep channels guide conductors and prevent over-insertion. Solid brass blades and contacts provide excellent conductivity. Transparent polycarbonate terminal cover makes terminals visible for visual termination verification.