Advantages Junction terminal stud adopted glass fiber reinforced nylon, flame retardant, good mechanical strength, long durability. Built to meet standard specifications, strictly follow factory quality control. High Quality MaterialsGlass fiber reinforced nylon base ensures high mechanical strength and durability. Stainless steel made the studs, brass made the connecting link Durabilitystainless steel screws and nuts to improve its corrosion and rust resistance in salt water or corrosive environment. Easy Installation Fixed screw mounting surface with two mounting holes make it easy to install in any direction. Package includes Double red studs (positive)M8*1; Black studs (negative)M8*1; Screw * 4 Main body material: stainless steel screw nut + brass gasket + plastic base Product net weight: M8 single screw 33.7g, screw double 67g Product includes: wiring bolts + 2 screws Suitable voltage: 12V-48V Applicable scene: Suitable for RVs, boats, trucks, yachts, etc. at 48 V. Colour: black, red Quantity delivered: 2 pieces