| 应用范围 |
| 内六角螺丝常用于机械上,，大多用于拧到零件内部的内螺纹，内六角便于紧固,拆卸,不容易滑角.适用于经常拆卸的地方，或者空间受限制的地方。 |
| 基本参数 |
● 材料：碳钢 合金钢
● 规格：M10-M100(/3/8″-4″)
● 长度：20mm～1500mm
● 等级：
● 钢ISO898:8.8～12.9;ASTM A574、A574M8
● 表面：发黑、镀锌、热镀锌、达克罗、特氟龙等 |
| 型式尺寸及标记示例 |
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| 尺寸检验 |
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| 内六角量规尺寸 |
| 8.8级和10.9级内六角量规尺寸(mm) | | 公称内六角规格s | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | | 通规 | 对边宽度A | max | 1.523 | 2.023 | 2.525 | 3.025 | 4.025 | 5.025 | 6.025 | | min | 1.520 | 2.020 | 2.520 | 3.020 | 4.020 | 5.020 | 6.020 | | 对角宽度B | max | 1.730 | 2.300 | 2.870 | 3.440 | 4.580 | 5.720 | 6.860 | | min | 1.725 | 2.295 | 2.865 | 3.435 | 4.575 | 5.715 | 6.855 | | 长度C | min | 5 | 5 | 7 | 7 | 7 | 7 | 8 | | 量规有效长度L1/L2 | 5/3.5 | 5/3.5 | 7/5 | 7/5 | 7/5 | 7/5 | 12/8 | | 通规 | 对边宽度X | max | 1.545 | 2.060 | 2.580 | 3.080 | 4.095 | 5.140 | 6.140 | | min | 1.543 | 2.058 | 2.575 | 3.075 | 4.090 | 5.135 | 6.135 | | 厚度Y | max | - | - | - | - | 1.80 | 2.30 | 2.80 | | min | - | - | - | - | 1.75 | 2.25 | 2.75 | | 对角宽度Z | max | 1.68 | 2.23 | 2.79 | 3.35 | - | - | - | | min | min | 1.66 | 2.21 | 2.77 | 3.33 | - | - | - |
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| 公称内六角规格s | 8 | 10 | 12 | 14 | 17 | 19 | 22 | | 通规 | 对边宽度A | max | 8.030 | 10.030 | 12.037 | 14.037 | 17.055 | 19.070 | 22.070 | | min | 8.025 | 10.025 | 12.032 | 14.032 | 17.050 | 19.065 | 22.065 | | 对角宽度B | max | 9.150 | 11.430 | 13.720 | 16.000 | 19.440 | 21.730 | 25.150 | | min | 9.145 | 11.425 | 13.715 | 15.995 | 19.435 | 21.725 | 25.145 | | 长度C | min | 8 | 12 | 12 | 12 | 19 | 19 | 22 | | 量规有效长度L1/L2 | 16/11 | 20/14 | 24/16 | 28/19 | 34/24 | 38/26 | 44/31 | | 通规 | 对边宽度X | max | 8.175 | 10.175 | 12.212 | 14.212 | 17.230 | 19.275 | 22.275 | | min | 8.170 | 10.170 | 12.207 | 14.207 | 17.225 | 19.270 | 22.270 | | 厚度Y | max | 3.80 | 4.80 | 5.75 | 6.75 | 8.10 | 9.10 | 10.50 | | min | 3.75 | 4.75 | 5.70 | 6.70 | 8.05 | 9.05 | 10.45 | | 对角宽度Z | max | - | - | - | - | - | - | - | | min | min | - | - | - | - | - | - | - |
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| 12.9级内六角量规尺寸(mm) | | 公称内六角规格s | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | | 通规 | 对边宽度A | max | 1.523 | 2.023 | 2.525 | 3.025 | 4.025 | 5.025 | 6.025 | | min | 1.520 | 2.020 | 2.520 | 3.020 | 4.020 | 5.020 | 6.020 | | 对角宽度B | max | 1.730 | 2.300 | 2.870 | 3.440 | 4.580 | 5.720 | 6.860 | | min | 1.725 | 2.295 | 2.865 | 3.435 | 4.575 | 5.715 | 6.855 | | 长度C | min | 5 | 5 | 7 | 7 | 7 | 7 | 8 | | 量规有效长度L1/L2 | 5/3.5 | 5/3.5 | 7/5 | 7/5 | 7/5 | 7/5 | 12/8 | | 通规 | 对边宽度X | max | 1.545 | 2.045 | 2.560 | 3.071 | 4.084 | 5.084 | 6.095 | | min | 1.543 | 2.043 | 2.555 | 3.066 | 4.079 | 5.079 | 6.090 | | 厚度Y | max | - | - | - | - | 1.80 | 2.30 | 2.80 | | min | - | - | - | - | 1.75 | 2.25 | 2.75 | | 对角宽度Z | max | 1.68 | 2.23 | 2.79 | 3.35 | - | - | - | | min | min | 1.66 | 2.21 | 2.77 | 3.33 | - | - | - |
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| 公称内六角规格s | 8 | 10 | 12 | 14 | 17 | 19 | 22 | | 通规 | 对边宽度A | max | 8.030 | 10.030 | 12.037 | 14.037 | 17.055 | 19.070 | 22.070 | | min | 8.025 | 2.020 | 2.520 | 3.020 | 4.020 | 5.020 | 6.020 | | 对角宽度B | max | 9.150 | 2.300 | 2.870 | 3.440 | 4.580 | 5.720 | 6.860 | | min | 9.145 | 2.295 | 2.865 | 3.435 | 4.575 | 5.715 | 6.855 | | 长度C | min | 8 | 12 | 12 | 12 | 19 | 19 | 22 | | 量规有效长度L1/L2 min | 16/11 | 20/14 | 24/16 | 28/19 | 34/24 | 38/26 | 44/31 | | 通规 | 对边宽度X | max | 8.115 | 10.115 | 12.142 | 14.142 | 17.230 | 19.275 | 22.275 | | min | 8.110 | 10.110 | 12.137 | 14.137 | 17.225 | 19.270 | 22.270 | | 厚度Y | max | 3.80 | 4.80 | 5.75 | 6.76 | 8.10 | 9.10 | 10.50 | | min | 3.75 | 4.75 | 5.70 | 6.70 | 8.05 | 9.05 | 10.45 | | 对角宽度Z | max | - | - | - | - | - | - | - | | min | min | - | - | - | - | - | - | - |
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