Salient Features- The high conductivity and premium quality Q6 mm plugs are made of brass and plated with nickel.- These can be screwed into instruments, equipments, beds, furniture or wall rails for potential equilisation.- Delivered in a standard length of 15mm. Other lengths can be supplied on request.- Supplied in a pack of 10.- The assembly materials, Plain Washers, Nuts and Spring Washers available as optional.