Space-savers stud-mount transformer connectors, slip-on, Dual rated connectors for Aluminum or Copper conductors, CO-OX Oxide inhibitor is omitted. Clear plated for low-contact resistance. Fully tested to ANSI C119.4 for Class ‘A’ connectors. Offers fast, economical, reusable, and dependable connections. Supplied with aluminum radial-tipped set-screws.