梅花槽圆头凸缘螺钉 [TABLE 2.2.12-2 VI] ASME B 18.6.3 (H12B-VI) - 2024
| 选择规格尺寸 点击↓ 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 7/16 1/2 |
尺寸单位:
inch |
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![ASME B 18.6.3 (H12B-VI) - 2024 梅花槽圆头凸缘螺钉 [TABLE 2.2.12-2 VI]](https://img.164580.com/upload/48/pic_cadpara/1500_zh.png?ue=1734855646&local=cache&tp=canvas&pict=png)
![美标ASME B18.6.3 (H12B-VI) - 2024 ASME18.6 梅花槽圆头凸缘螺钉 [TABLE 2.2.12-2 VI]](https://img.164580.com/upload/48/pic/2023/11/21/1700533858188392742.jpg)
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| ①,若以小数规定公称直径，应省略小数前和小数点后第四位的零。 ②,机械螺钉的螺纹长度： 1）螺纹规格≤5#: 公称长度≤3倍公称直径的应为满扣产品，头下螺纹肩距≤1倍螺距。 公称长度＞3倍公称直径到 1-1/8 in 的，允许头下肩距最大不超过2倍螺距。 若无其他规定，长螺钉的最小螺纹长度为1 in 。 2）螺纹规格≥6#: 公称长度≤3倍公称直径的应为满扣产品，头下螺纹肩距≤1倍螺距。 公称长度＞3倍公称直径到 2 in 的，允许头下螺纹肩距最大不超过2倍螺距。 若无其他规定，长螺钉最小螺纹长度为 1.5 in 。 ③,螺杆直径ds应不小于2A级螺纹最小中径，并不大于公称（基本）螺纹大径。 |
长度公差
Machine screws can be made to any length, but they are generally produced in fractional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.
标称螺钉尺寸的长度公差 | |||
标称螺钉长度 | 螺纹规格 | ||
0000~00 | 0~12 | 1/4~3/4 | |
≤1/2 | -0.01 | -0.02 | -0.03 |
＞1/2,≤1 | -0.02 | -0.03 | -0.03 |
＞1,≤2 | / | -0.06 | -0.06 |
＞2 | / | -0.09 | -0.09 |
类似标准及供货信息
| 1 |
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[国标] GB /T 2672 - 2004 |
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| 2 |
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[德标] DIN 34805-1 - 2018 |
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| 3 |
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[法国] NF E 25-109 - 2001 |
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![梅花槽大扁头螺钉 [TABLE 2.2.7-2 VI]](http://img.164580.com/upload/48/pic/2023/11/23/1700705535496114795.jpg)
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[美标] ASME B 18.6.3 (H7B-VI) - 2024 |
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| 5 |
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[美标] ASME B 18.6.3 (T39-VI) - 2013 |
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| 6 |
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[美标] ASME B 18.6.3 (T25-VI) - 2013 |
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| 7 |
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[美标] ASME B 18.3 (Table 11-III) - 2012 |
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| 8 |
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[日本汽车工业协会标准] JASO F 116 - 2005 |
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