方头紧定螺钉 半圆柱端(A307, SAE J429, F468, F593) ASME B 18.6.2 (T2-Half Dog) - 2020
| 选择规格尺寸 点击↓ 10# 0.1900 1/4 0.2500 5/16 0.3125 3/8 0.3750 7/16 0.4375 1/2 0.5000 9/16 0.5625 5/8 0.6250 3/4 0.7500 |
尺寸单位:
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| ①,末端类型。未指定时，方头紧定螺钉末端应采用凹端。凹端内部或外部可以根据厂家意愿滚花。锥形末端、长圆柱端、半圆柱端、平端以及倒圆端的参数详见表 2.5.1-1。 ②,末端的角度仅适用于螺纹根部以下的部分，因为螺纹轮廓内的角度可能会因为制造工艺的不同而产生变化。 ③,长圆柱端。当有效螺纹长度小于螺纹公称直径时，则不应采用长圆柱端。这种情况下应采用半半圆柱端。 ④,螺纹系列和等级。方头紧定螺钉应采用ASME B1.1规定的统一螺纹，英寸制，细牙或8-thread系列，2A级。对于有涂镀层的螺纹，其尺寸在涂镀前应满足2A级精度，涂镀后的螺纹需通过基本的3A级通规和2A级螺纹规进行最小材料或止规的检验。 ⑤,若无指定，螺钉螺纹尺寸应按ASME B1.3中的21体系要求进行验收。 |
注：技术数据仅供参考，请以官方原件为准！
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[德标] DIN 478 - 1985 |
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[德标] DIN 480 - 1985 |
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[日标] JIS B 1118 - 2010 |
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[日标] JIS B 1118 - 2010 |
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[日标] JIS B 1118 - 2010 |
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[日标] JIS B 1118 - 1995 |
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[美标] ASME/ANSI B 18.6.2 (T4) - 1998 (R2010) |
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[意大利] UNI 6050 (A) - 1967 |
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[意大利] UNI 6050 (B) - 1967 |
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[意大利] UNI 6050 (C) - 1967 |
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[台湾] CNS 4249 - 1980 |
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[台湾] CNS 4250 - 1980 |
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[美标] ASME B 18.6.2 (T2-Cup) - 2020 |
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