4-6mm Yellow Insulated Lug 6mm Ring 20 Pack Professional-grade insulated lugs designed for secure electrical connections in industrial and commercial applications. Each lug features a 6mm ring terminal and accommodates wire gauges from 4-6mm, making them ideal for medium-duty circuits. The yellow insulation provides clear identification and enhanced safety during installation. This 20-pack offers excellent value for contractors and electricians managing multiple projects. Manufactured to withstand demanding environments while maintaining reliable conductivity and corrosion resistance.