Copper cable lugs are made in a broad variety of standard size and stud hole variations to support diverse cable cross-sections and installation practices. Sizing normally follows the copper conductor's cross-sectional area, with typical sizes ranging from as low as 1.5 sqmm to 630 sqmm, and in exceptional cases, even up to 800 sqmm or 1000 sqmm for specific uses. Stud hole size—di... https://www.pioneerpowers.com/copper-cable-lugs.php