GB/T152.5-2014紧固件沉头木螺钉用沉孔1范围GB/T152的本部分规定了符合国家标准沉头木螺钉及半沉头木螺钉用沉头沉孔的型式尺寸与标记。2尺寸沉孔的型式尺寸见图1和表1。901回T12日图1沉孔表1尺寸单位为毫米diD.公称规格min(公称)maxmin(公称)max1.61.81.943.73.881.022.42.544.54.681.22.52.93.045.45.581.433.43.586.66.821.73.53.94.087.77.922.044.54.688.68.822.24.55.05.1810.110.372.755.55.6811.211.473.05.56.06.1812.112.373.266.66.8213.213.473.577.67.8215.315.574.089.09.2217.317.574.51011.011.2721.922.235.8公差带为H13。1
