Red And Black Power Distribution Busbar Block with Cover BU-B-4/5/6/7/10 Car Audio Power Distribution Block. Busbar Screw Stud Terminal Connection. Red and black base with transparent top cover, nickel-plated copper, car audio busbars blocks. BU-B series is mostly short chip, screw collocation is also very diverse, single row arrangement without cross. The size of this product is not too small, suitable for most lines. It comes in five models. Screws Battery Copper Row Bus Bar for Car, red and black are sold in pairs, but you can separate the colors if you want. Here are the numbers. BU-B-4 is 4*M6. BU-B-5 is 3*M6+2*M4. BU-B-6 is 6*M6. BU-B-7 is 4*M6+3*M4. BU-B-10 is 4*M6+6*M4. Auto audio distribution box, busbars distribution block. This se…