4 Post Power Distribution Block Bus Bar with Cover - Made in The USA - 250 Amp Rating - Marine, Automotive, and Solar Wiring - Set of 2 (5/16")

This 4 Post Power Distribution Block Bus Bar Pair with Cover is a quality product made in the USA that has a 250 amp rating for automotive, marine and solar wiring. Buyers should not torque the bolts too much to avoid stripping the plastic base. The acorn nuts are the same size as the posts, so 5/16” or 3/8” depending on which variation you purchase. The 250 amp rating is for the entire bus bar as each post is tied together with the contact plate. Buyers will need to purchase loop terminals and wire of sufficient size to handle the amperage to connect it to the battery. The body of the bus bar does not serve as the ground itself, and one of the posts of the black bus bar needs to connect to the ground. However, it is not recommended for outdoor use exposed to the weather as all connections are very exposed. The product has generated mixed reviews. The studs are actual 3/8" as some buyers preferred, but low-quality bolts strip out easily. One buyer found the amp rating way off, while another used it as a bus for a dual battery setup, and it worked perfectly. Overall, it does what it is meant to do and cleans up connections.