Abstract: An improved single-pole, male, electrical connector for use in industrial applications involving very high currents (e.g., in excess of 1,000 amps) and a method for making and adjusting the connector are disclosed. The connector has a male pin with a slot along most of its length and an adjustment mechanism that is used to vary the width of the slot. By varying the width of the slot, the effective diameter of the pin is changed. The male connector must fit tightly in a female connector, and the adjustment is used to obtain the required fit. In the disclosed invention, the adjustment mechanism is positioned near a tip of the pin and under an insulating safety cap. The adjustment mechanism is configured for adjustment prior to installation of the safety cap.