These 4mm Sheathed Banana Jacks provide a Ø4.8mm quick connect tab. These banana jacks operate up to 5kV when used in non-category environments with transient overvoltages up to 2kV. These banana jacks fit into both plastic and metal panels fixed with a 14.5mm hex panel nut. These banana plugs are designed to be used only with the long-reach high voltage test leads listed in the hookup accessories below. https://elecena.pl/product/17083177/4mm-sheathed-banana-jack-4-8mm-quick-connect-red 2020-07-25 https://elecena.pl/product/17083177/4mm-sheathed-banana-jack-4-8mm-quick-connect-red 2020-08-04 https://elecena.pl/product/17083177/4mm-sheathed-banana-jack-4-8mm-quick-connect-red 2020-09-16 https://elecena.pl/product/17083177/4mm-sheathed-banana-jack-4-8mm-quick-connect-red 2021-07-21 https://elecena.pl/product/17083177/4mm-sheathed-banana-jack-4-8mm-quick-connect-red 2022-05-12 https://elecena.pl/product/17083177/4mm-sheathed-banana-jack-4-8mm-quick-connect-red 2022-08-05