Component (a building block) — not the same thing as a radical or a sound component. · 5strokes
针钉钓衔钙钝钞钟
Kangxi radical no.167 · 金 · 8strokes — The 214 Kangxi radicals
Filed under it in a dictionary. That is a lookup convention — it does not mean it is the only part the character is built from.
金针钙钝钟钠钦钮