For restricted-space applications and as a truck-grounding system, this compact design delivers a high-current rating usually associated with only large clamps. It applies to a wide range of switching equipment, including: Industrial metalclad gear, Substations — indoors and out, Distribution — overhead and underground. For trucks, a *ball stud permanently mounts on each body. Two ball-stud lengths adapt to many applications. *Ball-studs are bronze alloy. Tin-plated ball-studs have nominal 1"-diameter ball and stud to fit NEMA terminal pads. Lockwasher and nut are silicone bronze.