The 111-0103-001 is a black insulated Binding Post with silver plated brass body, nylon 6/6 per ASTM D4066 insulation fully insulated nylon binding post solves many common design problems. Nylon is flatted to prevent turning. Metal body is silver plated with turret terminal. Threaded nylon body withstands 6.0lbs.inch (7kg.cm) of thread stripping force for panel thickness up to 7.15mm.