钥 钅 + 月 钅 Part jīn gold 月 Part yuè moon Appears in characters like: 钱 错 银 针 锁 锅 铃 键 铺 钟 钉 钉 钓 铺 镑 铐 锯 钩 铜 铅 铲 钢 钝 锤
匙 是 + 匕 是 Part shì indeed 匕 Part bǐ spoon Appears in characters like: 提 题 匙 堤 缇 媞 鳀 寔 湜 禔 踶 鍉 鞮 韪 鶗 𬤊
链 钅 + 连 钅 Part jīn gold 连 Part lián join Appears in characters like: 钱 错 银 针 锁 锅 铃 键 铺 钟 钉 钉 钓 铺 镑 铐 锯 钩 铜 铅 铲 钢 钝 锤