Unverified80% confidenceTradeoffTime unknown
沉头（埋头）铆钉需要板材先钻锥形沉孔才能与表面齐平，圆头（平圆头）铆钉直接钻圆孔即可外露铆帽；追求平整外观选沉头，普通固定用圆头
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
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