Features 1. Function: Converts side terminal batteries into top posts. Each includes a hexagonal nut ring that can be tightened with a wrench. 2. Size: Battery cable terminal thread diameter is 9.2mm / 0.36in; Thread length is 10mm / 0.39in; Please verify your required size before purchasing. 3. Clear Bottom Marking: Each charging post is marked with positive (+) or negative (-) at the bottom; positive (+) diameter is 17 to 19mm; negative (-) diameter is 15 to 17mm. 4. Compatible Batteries: These battery side charging posts are designed for use with automotive battery threads only. Not compatible with any type of powersports battery. 5. Application: Used for charging side-post batteries and converting side-post batteries to top-post configurations. Specification Item Type: Terminal Charging Posts Material: Brass Installation Position: Positive electrode, Negative electrode Product Size: Thread Diameter: Approx. 9.2mm / 0.36in Thread Length: Approx. 10mm / 0.39in Bottom Marking: Positive (+) Diameter: Approx. 17 to 19mm / 0.67 to 0.75in; Negative (-) Diameter: Approx. 15 to 17mm / 0.59 to 0.67in These battery side charging posts are designed for use with automotive battery threads only. Not compatible with any type of powersports battery. Package List 1 x Positive Terminal Charging Post 1 x Negative Terminal Charging Post