Straight Barrel Copper Battery Terminals Straight barrel copper die cast battery terminals can be crimped or soldered. Includes 1/2 inch bolt and nut. The 'X' in the part number denotes cable size. Available in 6 gauge, 4 gauge, 2-1 gauge, 1/O gauge, 2/O gauge, 3/O gauge, and 4/0 gauge. Sizes larger than 4 gauge are polarized. 6 and 4 gauge sizes work for both positive and negative connections. About us YONGJIA AOCHENG HARDWARE CO.,LTD is a manufacturer, seek to provide quality and tested products at affordable prices. We are based at Wenzhou, China. If you want to discuss any of our products you can call a sales representative on +86 577 6721 1565 or email us. Leadtime Usually can be finished in 25 days after your Advanced payment received. Payment terms T/T L/C Western union Paypal Package Standard export packaging(Cartons packing or color box packing) Also can according to customer's requirements. ♥ We sell Top Quality Products at Wholesale Prices. All our items are thoroughly researched & tested prior to being offered. ♥