FeaturesManufactured from high strength 6061-T6 aluminum alloyLay-in featureSuitable for use with either copper or aluminum conductorsProvides low contact resistanceGBL-4 and GBL-4SS are UL 467 listed for grounding and bondingGBL-1/0 and GBL-250 are UL 467 recognized for grounding and bondingGBL-4SS is supplied with stainless steel screwSee ILSCO® GBL-4DB for lay-in copper lug suitable for direct burialGBL-4SS tested to ASTM B117-09 for operating in a salt spray (fog) environment7/32 in hex