... : brass, zinc alloy, steel, SS steel, aluminumType: passage, privacy and dummyBackset: BS 2-3/8" or 2-3/4"Throw ... latchFinish: zinc plating or powder sprayingFunction: used as decoration, connectors, and fixtures Item: coat hook, kick plate, push plate, flush ... doorknocker, security door guard, surface bolt, flush ring pull, adjustable ball androller catch, edge pull, bell button, and switch plate