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尺寸单位:
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①,推荐用于强度要求不高的,诸如护栏、铰链等紧固连接上。不推荐用于较高要求的高强度紧固连接场合,那里一般应采用内凹槽圆柱头螺钉。 ②,公称长度小于等于表中标准长度数值的螺钉为全螺纹产品。这个完整螺纹(由一个无螺纹内倒角或无沉孔的通端螺纹环规测量)应延伸到头部支承面的两个螺距以内。更长的螺钉,其完整螺纹长度由制造者选择,最小长度为2倍螺钉公称直径加0.5英寸,最大长度也可以按全螺纹加工。螺钉的无螺纹部分应为公称直径,其公差应与内六角圆柱头中的光杆尺寸相同。 ③,螺纹为统一螺纹:UNRC 粗牙或UNRF 细牙系列,3A级。检查验收应符合ASME B1.3,体系22的要求。3A级精度没有为镀层提供间隙。 |
类似标准及供货信息
1 | [国标] GB /T 70.2 - 2015 |
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2 | [国标] GB /T 70.2 - 2008 |
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3 | [国标] GB /T 70.2 - 2000 |
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4 | [国标] GB /T 70.4 - 2015 |
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5 | [国际] ISO 7380-1 - 2022 |
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6 | [国际] ISO 7380-2 - 2022 |
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7 | [国际] ISO 7380-1 - 2011 |
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8 | [国际] ISO 7380-2 - 2011 |
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9 | [国际] ISO 7380 - 2004 |
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10 | [国际] ISO 7380 - 1997 |
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11 | [日标] JIS B 1174 - 2017 |
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12 | [日标] JIS B 1174 - 2017 |
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13 | [日标] JIS B 1174 - 2006 |
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14 | [日标] JIS B 1174 - 1994 |
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15 | [美标] ASME/ANSI B 18.3 - 2003 |
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16 | [美标] ASME/ANSI B 18.3.4M - 1986 |
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17 | [美标] ASME/ANSI B 18.3.4M - 1986 (R2008) |
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18 | [法国] NF E 25-126 - 2004 |
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19 | [英标] BS 2470 - 1973 |
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20 | [企标] YJT 4026 |
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21 | [企标] YJT 4080 |
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22 | [德标] DIN EN ISO 7380 (-1) - 2011 |
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23 | [德标] DIN EN ISO 7380 (-2) - 2011 |
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24 | [美标] ASME B 18.3 - 2003 (R2008) |
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