M8 5/16 Inch Battery Power Distribution Clamp Block, Durable Positive Negative Double Bolt Connection, Insulated Connection Post 12 V - 48 V DC Bus bar for Car, Marine, Camper BoatSpecifications:Colour: black, red Base material: nylon, fibreglass-reinforced. Max. Operating voltage: DC 48 V. Max. Ampere | 80A. Stud size: M8 (5/16 inch) Installation method: surface screw fixed installationDescription:WHY YOU NEED IT - Need to move a trolling engine but don t want to make new battery cables? Do you store the battery of your car in the boot, but still want to jump start or charge columns in the engine compartment? Our heavy-duty connection posts help solve the problem. Why choose us: take a look at the photo carefully There is a rod between the two tabs. Unlike most products on the market, our distribution terminals do not have a single pole, but a rod made of tin-plated copper.Feature:STRONG AND RESISTANT - Our bases are made of flame retardant plastic, less prone to extreme temperatures and more resistant. The design of the insulated base of the bolt also prevents voltage leaks on your vehicle or hull. Item size: bolt size: 5/16 inches (M8). Maximum amplifier per circuit: determined by the connected wires. (Note: the maximum operating voltage is DC 48V and up to 80A) Wide application: this positive and negative power distribution block is ideal for customising vehicles or moving batteries. Suitable for most 12-48V trucks, motorhomes, coaches, boats and other industrial equipment.Function:1. Allows you to assemble heavy duty cables for one or more connections. 2. The base is made of flame retardant plastic to protect your safety. 3. Suitable for trucks, caravans, coaches, boats etc. Package contents: Red (positive) double bolts (M8) x 1; or black (negative) double plug (M8) x 1; or 1 pair