自攻螺丝的标准规格命名,是不是没有M的说法?比如说M3。

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  <table cellSpacing=0 cellPadding=0 border=0><tbody><tr height=19><td width=52 height=19>自攻螺丝规格表-JIS JIS <td><td colSpan=20> <td><tr><tr height=19><td colSpan=2 height=19>公称尺寸<td><td width=26>T1.2<td><td>T1.4<td><td>T1.6<td><td>T1.7<td><td>T2.0<td><td>T2.3<td><td>T2.5<td><td colSpan=2>T2.6<td><td colSpan=2>T3.0<td><td colSpan=2>T3.5<td><td colSpan=2>T4.0<td><td colSpan=2>T4.5<td><td colSpan=2>T5.0<td><tr><tr height=19><td width=106 colSpan=2 height=57 rowSpan=3>螺纹尾形<td><td>AB<td><td>AB<td><td>AB<td><td>AB<td><td>AB<td><td>AB<td><td>AB<td><