The LOK Brand connectors are considered high copper content (no less than 68% copper) brass.  This is a higher copper content than most connectors on the market. Any higher copper content would make machining the connectors extremely difficult due to softness of the metal.  We have optimized the copper content percentage to maximize the durability of use in your system while delivering the best sound.

The bulk of the remaining content is zinc, and by definition brass is an alloy of copper and zinc. 

This exceptional spade requires only a standard hex wrench for easy, solid termination. Diamond knurled pattern provides exceptional gripping power.  Accommodates up to a 4mm cable.