Ensure reliable connections with Ilsco SureCrimp® Copper Compression Lugs. Designed for standard barrel applications, these lugs feature a 1-hole configuration and a convenient sight hole for visual inspection. Made from durable copper, they are suitable for wire sizes up to 250 kcmil or 4/0 FLEX, and accommodate a 1/2 inch bolt/stud size. Each lug is plated with tin for enhanced conductivity and corrosion resistance. This pack contains one lug.The Ilsco SureCrimp® CSWS-250-12-1PK is a copper compression lug with a standard barrel design. It features one mounting hole and a sight hole for easy inspection. The lug is designed for wire sizes of 250 kcmil or 4/0 FLEX and has a bolt/stud size of 1/2 inch. The material is copper and it is plated with tin.