Cardas Patented Binding Posts are standard equipment on a great number of High End Components for a reason.  They are elegant, easy to use, moderately easy to install, make great contact, but most importantly, they sound GREAT!

Cardas/Colver binding post, billet Copper posts, glass filled nylon insulator.  Work best with 1/4" spades, but will accept 5/16".

Picture is of CPBP Copper Long