For grounding trucks or other equipment, *ball stud permanently mountson each body with furnished lockwasher, flat washer and nut. Removablestud has recessed-hex end fitting for through-mounting versatility.*Ball-stud is a bronze alloy. The Tin-plated ball-stud has 20mm (0.788")diameter ball, 7/8"-hex fitting and 11/2"-long 1/2"-13 threads to fitNEMA terminal pads.
