Heat grill. In medium bowl, combine all ingredients except scallops; mix well. Add scallops; toss to coat.
When ready to grill, with slotted spoon, place scallops in grill basket; reserve butter mixture. Place basket on gas grill over medium heat or on charcoal grill 4 to 6 inches from medium coals. Cook 3 to 8 minutes or until scallops turn opaque, turning and brushing twice with butter mixture. Discard any remaining butter mixture.