Norseman Gibb's T-Ball Terminals are manufactured from grade 316 stainless steel. They are specifically designed to be matched with their metrically or imperially-dimensioned wire rope. The head is stamped with a metric (using whole numbers and decimal points) or imperial (using fractions) measurement. In some cases it will be stamped with a whole number and a fraction, indicating the metric size followed by the imperial size. NT741M05 is suited for 5mm ball terminals and has a head height of 7/16 in (11.1mm).