Buy online Closed End Connector Terminals in UK that can be crimped for a quick, low-cost, simple, and permanent electrical connection of two or more wires. Simply feed your wires all the way into the closed end connector and use any standard wire crimpers to crimp around the barrel. Insulation: Vinyl Terminal Body: Copper Plating: Tin Wire Range: 22-16 AWG, 16-14 AWG, 12-10 AWG. Order best Connector Terminals from Kafton UK.