Electrical Crimp Connectors Range of crimp connectors including piggyback, ring, fork and spade terminals. Electrical Crimp Connectors Range of crimp connectors include Female Spade, Male Spade, Fork Terminals, Ring Terminals, Butt Terminals and Piggyback Terminals. Which Size do I need? Yellow Wire Range 10 - 12AWG Blue: Wire Range 14 - 16AWG Red: Wire Range 16 -22 AWG Common Sizes Include: 6.3mm width, 4.8mm width and 2.8mm width terminals. Insulation: Available fully insulated with tough durable vinyl insulated or uninsulated terminals. 6.3mm Blue Insulated Spade Terminal Female crimp connectors suitable for 14-16AWG wires. The connectors feature PVC insulation and form a reliable electrical connection. Fits 6.3mm tabsFully insulatedTin plated brass contactsPack of 100 6.