Stud diameter: M8 Maximum current: Determined by the connected wire Application: The positive and negative terminal stud is useful for customizing vehicles or relocating batteries. Applicable to 12-48V trucks, RVs, coaches, boats, and other industrial equipment. Maximum product voltage: DC 48V Base material: Fiberglass reinforced nylon Nuts and studs material: Stainless steel Base size: L x W = 46 x 43 mm (1.77 inch x 1.69 inch) Mounting hole size: 4.5 mm / 0.18 inch (D) Material: Nylon + Metal Color: Black + Red Package Contents: 2 x Terminal Block Studs (1 Red + 1 Black) 4 x Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.