Four way grounding sets by Salisbury consist of three upper ground heads for common electrical connections and a lower head for common to ground connection. These 4-way grounding sets meet ASTM F-855, Grade 3 specifications and are ideal for three phase wye connections. They are available in 3 types of connecting heads: socket clamps for screwed connections, serrated jaw clamps for tendon gripping and clamp sticks with screw eyes for connecting to high tension devices. Raptor Supplies offers Salisbury four way grounding sets with fiberglass handles on all leads.