开槽圆头凸缘（带垫、带介）螺钉 (ASTM F837, F468) [TABLE 2.2.12-1] ASME B 18.6.3 (H12A) - 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 (H12A) - 2024 开槽圆头凸缘（带垫、带介）螺钉 (ASTM F837, F468) [TABLE 2.2.12-1]](https://img.164580.com/upload/48/pic_cadpara/1498_zh.png?ue=1734857329&local=cache&tp=canvas&pict=png)
![美标ASME B18.6.3 (H12A) - 2024 ASME18.6.3 开槽圆头凸缘（带垫、带介）螺钉 (ASTM F837, F468) [TABLE 2.2.12-1]](https://img.164580.com/upload/48/pic/2023/11/21/1700527831966495515.jpg)
![ASME B 18.6.3 (H12A) - 2024 开槽圆头凸缘（带垫、带介）螺钉 (ASTM F837, F468) [TABLE 2.2.12-1]](https://img.164580.com/upload/48/qrcode_standardurl/24973.png)
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| ①,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 。 ②,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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[日标] JIS B 1101 (JA8) - 2017 |
开槽圆头螺钉 附表JA.8 Slotted Round Head Screws - Table JA.8 |
| 2 |
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[日标] JIS B 1101 (AAT6) - 1996 |
开槽圆头螺钉 附表6 [Annex Attached Table 6] Slotted Round Head Screws [Annex Attached Table 6] |
| 3 |
|
[美标] ASME/ANSI B 18.6.2 - 1998 (R2010) |
开槽圆头螺钉 [Table 2] (A307, SAE J429, F468, F593) Slotted Round Head Cap Screws [Table 2] (A307, SAE J429, F468, F593) |
| 4 |
![英制开槽圆头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 4]](http://img.164580.com/upload/48/pic/2020/07/31/1596173966889365739.jpg)
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[英标] BS 450 - 1958 |
英制开槽圆头螺钉 - B.S.W. & B.S.F. 螺纹 [Table 4] Slotted Round Head Screws with B.S.W. & B.S.F. Threads [Table 4] |
| 5 |
|
[台湾] CNS 9671 - 1988 |
开槽圆头螺钉 Slotted Pan Head Screws |
| 6 |
|
[军标] GJB 3372 (/25~/31) - 1998 |
半圆头螺钉 开槽 Slotted Round Head Screws |
| 7 |
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[军标] GJB 3372 (/53) - 1998 |
半圆头不脱出螺钉 Slotted Round Head Screws With Waisted Shank |
| 8 |
|
[美标] ASME B 18.6.3 (H11A) - 2024 |
开槽圆头螺钉 (ASTM F837, F468) [TABLE 2.2.11-1] Slotted Round Head Screws (ASTM F837, F468) [TABLE 2.2.11-1] |
| 9 |
|
[美标] ASME B 18.6.3 (T35) - 2013 |
开槽圆头螺钉 [Table 35] (ASTM F837, F468) Slotted Round Head Screws [Table 35] (ASTM F837, F468) |
| 10 |
![开槽圆头凸缘（带垫、带介）螺钉 [Table 38] (ASTM F837, F468)](http://img.164580.com/upload/48/pic/2023/11/21/1700527830095746539.jpg)
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[美标] ASME B 18.6.3 (T38) - 2013 |
开槽圆头凸缘（带垫、带介）螺钉 [Table 38] (ASTM F837, F468) Slotted Round Washer Head Screws [Table 38] (ASTM F837, F468) |
| 11 |
|
[航天] QJ 2369 - 1992 |
开槽圆头螺钉 Slotted round Head Screws |
| 12 |
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[航天] QJ 2386 - 1992 |
开槽圆头螺钉 Slotted round head screws |