Unverified85% confidenceFactTime unknown
角码沉头孔（漏斗形）需配沉头螺丝才能与表面齐平，直孔配平头/圆头螺丝；选购时孔型与配送螺丝头型不匹配会导致螺丝凸出无法贴紧
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85%
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Long-term
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