Material: Brass, Iron, Aluminum Alloy; Color: Brass Tone; Internal Thread Size: M8*1.25; External Thread Size: M6*1.0; Thread Length: 8.5mm/0.33 inch; Positive Outer Diameter: 19mm x 17mm/0.75 inch x 0.67 inch(Max. * Min.); Negative Outer Diameter: 17mm x 15mm/0.67 inch x 0.59 inch(Max. * Min.). Battery terminal connectors are made of brass material, which has better corrosion resistance, with strong electrical conductivity.. The battery post terminal for battery charging, and battery posts extension. It is universally used for cars, boats, and RV battery terminal connectors.. Easy to install and connect, no need for other special tools(even tight and loose with hand).. Package Included: 1 Pair x Battery Terminal Connectors.
