FeaturesManufactured from high strength copperLay-in featureStainless steel hardwareProvides ease of installation of continuous loop grounding conductorSuitable for direct burial and for use with copper conductorsResists oxidation and corrosion in earth or concreteGBL-MH1 contains 1 each 32 to 10 AWG x 3/4 bolt, nut, star washer, lock washer, flat washer) (GBL-MH2 contains 1 each 10 AWG x 3/4 self-tapping screw, star washer, lock washer, flat washerGBL-MH4 contains 1 each 1/4 x 3/4 self-tapping screw, star washer, lock washer and flat washerGBL-MHU contains 1 each 32 to 10 AWG x 1/2 bolt, 32 to 10 AWG x 3/4 bolt, nut, star washer, lock washer and flat washerSlot screw