中英制螺纹对照表 - 图文

切削速度与切削液 切削速度（m/min） 加工材料 直槽丝攻 螺旋丝攻 先端丝攻 钨钢丝攻 无屑丝攻 高速同步丝 管用丝攻 攻 油 性 切 削 液 水 溶 性 半干式 (乳化液) 干 式 低碳素钢 C0.25％以下 8~13 8~13 15~25 中碳素钢 C0.25～0.45％ － － － － － － － － － 10~20 8~13 27~32 7~10 27~32 5~8 5~8 － 5~10 － － － － － 22~27 22~27 － － － － 17~22 － － 3~6 3~6 2~5 2~5 2~5 3~6 2~5 2~5 2~5 2~5 4~8 2~5 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○ ○ ○ ◎ ◎ ◎ ◎ － － ○ ○ ○ △ △ ○ － － ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ △ △ △ △ － － － － － ○ ○ － ○ － △ △ ○ △ ○ ○ △ △ △ △ － － － － － ○ － － ○ － － － － － ○ ○ 7~12 7~12 10~15 6~9 8~13 高碳素钢 C0.45％以上 6~9 合 金 钢 SCM 7~12 7~12 10~15 3~5 3~5 4~6 调 质 钢 25～45HRC (4~8) (4~8) (6~10) 不 锈 钢 不 锈 钢 工 具 钢 铸 钢 铸 铁 球 铸 铁 铜 黄 铜 ? 黄铜铸件 青 铜 ? 青铜铸件 变 形 铝 合 金 铝 合 金 铸 件 镁 合 金 锌 铸 件 热硬塑料 热可塑性塑 料 SUS SUS630 SUS631 SKD 4~7 3~5 6~9 5~8 3~5 6~9 8~13 4~6 7~10 SC 6~11 6~11 10~15 10~15 － － FC FCD 7~12 7~12 10~20 10~20 6~9 Cu 6~11 7~12 10~20 7~12 27~32 Bs?BsC PB?PBC AL AC?ADC MC 10~15 10~20 15~25 15~25 7~12 27~32 5~10 6~11 6~11 10~20 10~20 7~12 10~20 10~20 10~25 － － 6~11 10~20 100~300 5~10 10~15 10~15 15~20 10~20 10~15 80~300 10~15 7~12 7~12 10~15 10~20 － － 10~15 ZDC Thermo Setting Plastic Thermo Plastic 7~12 7~12 10~15 10~20 7~12 27~100 10~15 10~20 － － 15~25 － － － 5~10 10~20 10~15 10~20 10~20 27~32 5~10 ◎最适 ○适用 △可使用 －不可使用

螺纹下孔径表

公制粗牙螺纹 JIS B 0209-1982(单位：mm) (注1)2级(注2) 崁合度区分：中崁合度区分：中(注1)2级(注2) 内螺纹小径 螺纹尺寸 钻头直径 下孔径 最小直径 最大直径 M 1 × 0.25 0.75 0.78 (80%) 1.1 × 0.25 0.85 0.88 (80%) 1.2 × 0.25 0.95 0.98 (80%) 1.4 × 0.3 1.1 1.14 (80%) 1.6 × 0.35 1.25 1.32 (75%) 1.8 × 0.35 1.45 1.52 (75%) 2 × 0.4 1.6 1.65 (80%) 2.2 × 0.45 1.75 1.83 (75%) 2.5 × 0.45 2.1 2.13 (75%) 3 × 0.5 2.5 2.59 (75%) 3.5 × 0.6 2.9 3.01 (75%) 4 × 0.7 3.3 3.39 (80%) 4.5 × 0.75 3.8 3.85 (80%) 5 × 0.8 4.2 4.31 (80%) 6 × 1 5 5.13 (80%) 7 × 1 6 6.13 (80%) 8 × 1.25 6.8 6.85 (85%) 9 × 1.25 7.8 7.85 (85%) 10 × 1.5 8.5 8.62 (85%) 11 × 1.5 9.5 9.62 (85%) 12 × 1.75 10.3 10.40 (85%) 14 × 2 12 12.2 (85%) 16 × 2 14 14.2 (85%) 18 × 2.5 15.5 15.7 (85%) 20 × 2.5 17.5 17.7 (85%) 22 × 2.5 19.5 19.2 (85%) 24 × 3 21 21.2 (85%) 27 × 3 24 24.2 (85%) 30 × 3.5 26.5 26.6 (90%) 33 × 3.5 29.5 29.6 (90%) 36 × 4 32 32.1 (90%) 39 × 4 35 35.1 (90%) 42 × 4.5 37.5 37.6 (90%) 45 × 4.5 40.5 40.6 (90%) 48 × 5 43 43.1 (90%) 注(1)M1.4以下等级：5H、M1.6以上等级：6H (2)基于JIS B 0209-1982标准

0.729 0.829 0.929 1.075 1.221 1.421 1.567 1.713 2.013 2.459 2.850 3.242 3.688 4.134 4.917 5.917 6.647 7.647 8.376 9.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 29.211 31.670 34.670 37.129 40.129 42.587 0.785 0.885 0.985 1.142 1.321 1.521 1.679 1.838 2.138 2.599 3.010 3.422 3.878 4.334 5.153 6.153 6.912 7.912 8.676 9.676 10.441 12.210 14.210 15.744 17.744 19.744 21.252 24.252 26.771 29.771 32.270 35.270 37.799 40.799 43.297 螺纹下孔径表

公制细牙螺纹 JIS B 0211-1982(单位：mm) (注1)2级(注2) 崁合度区分：中崁合度区分：中(注1)2级(注2) 内螺纹小径 螺纹尺寸 钻头直径 下孔径 最小直径 最大直径 M 2.5 × 0.35 3 × 0.35 3.5 × 0.35 4 × 0.5 4.5 × 0.5 5 × 0.5 5.5 × 0.5 6 × 0.75 7 × 0.75 8 × 1 8 × 0.75 9 × 1 9 × 0.75 10 × 1.25 10 × 1 10 × 0.75 11 × 1 11 × 0.75 12 × 1.5 12 × 1.25 12 × 1 14 × 1.5 14 × 1 15 × 1.5 15 × 1 16 × 1.5 16 × 1 17 × 1.5 17 × 1 18 × 2 18 × 1.5 18 × 1 20 × 2 20 × 1.5 20 × 1 22 × 2 22 × 1.5 22 × 1 24 × 2 2.2 2.7 3.2 3.5 4 4.5 5 5.3 6.3 7 7.3 8 8.3 8.8 9 9.3 10 10.3 10.5 10.8 11 12.5 13 13.5 14 14.5 15 15.5 16 16 16.5 17 18 18.5 19 20 20.5 21 22 2.22 (75%) 2.72 (75%) 3.22 (75%) 3.59 (75%) 4.09 (75%) 4.59 (75%) 5.09 (75%) 5.35 (80%) 6.35 (80%) 7.13 (80%) 7.35 (80%) 8.13 (80%) 8.35 (80%) 8.85 (85%) 9.13 (80%) 9.35 (80%) 10.13 (80%) 10.35 (80%) 10.62 (85%) 10.85 (85%) 11.13 (80%) 12.62 (85%) 13.13 (80%) 13.62 (85%) 14.13 (80%) 14.62 (85%) 15.13 (80%) 15.62 (85%) 16.13 (80%) 16.2 (85%) 16.62 (85%) 17.13 (80%) 18.2 (85%) 18.62 (85%) 19.13 (80%) 20.2 (85%) 20.62 (85%) 21.13 (80%) 22.2 (85%) 2.121 2.621 3.121 3.459 3.959 4.459 4.959 5.188 6.188 6.917 7.188 7.917 8.188 8.647 8.917 9.188 9.917 10.188 10.376 10.647 10.917 12.376 12.917 13.376 13.917 14.376 14.917 15.376 15.917 15.835 16.376 16.917 17.835 18.376 18.917 19.835 20.376 20.917 21.835 2.221 2.721 3.221 3.599 4.099 4.599 5.099 5.378 6.378 7.153 7.378 8.153 8.378 8.912 9.153 9.378 10.153 10.378 10.676 10.912 11.153 12.676 13.153 13.676 14.153 14.676 15.153 15.676 16.153 16.210 16.676 17.153 18.210 18.676 19.153 20.210 20.676 21.153 22.210 24 24 25 25 25 × 1.5 × 1 × 2 × 1.5 × 1 22.5 23 23 23.5 24 22.62 (85%) 23.13 (80%) 23.2 (85%) 23.62 (85%) 24.13 (80%) 22.376 22.917 22.835 23.376 23.917 22.676 23.153 23.210 23.676 24.153 螺纹下孔径表

公制细牙螺纹 JIS B 0211-1982(单位：mm) (注1)2级(注2) 崁合度区分：中崁合度区分：中(注1)2级(注2) 内螺纹小径 螺纹尺寸 钻头直径 下孔径 最小直径 最大直径 M26 × 1.5 27 × 2 27 × 1.5 27 × 1 28 × 2 28 × 1.5 28 × 1 30 × 3 30 × 2 30 × 1.5 30 × 1 32 × 2 32 × 1.5 33 × 3 33 × 2 33 × 1.5 35 × 1.5 36 × 3 36 × 2 36 × 1.5 38 × 1.5 39 × 3 39 × 2 39 × 1.5 40 × 3 40 × 2 40 × 1.5 42 × 4 42 × 3 42 × 2 42 × 1.5 45 × 4 45 × 3 24.5 25 25.5 26 26 26.5 27 27 28 28.5 29 30 30.5 30 31 31.5 33.5 33 34 34.5 36.5 36 37 37.5 37 38 38.5 38 39 40 40.5 41 42 24.62 (85%) 25.2 (85%) 25.62 (85%) 26.13 (80%) 26.2 (85%) 26.62 (85%) 27.13 (80%) 27.2 (85%) 28.2 (85%) 28.62 (85%) 29.13 (80%) 30.2 (85%) 30.62 (85%) 30.2 (85%) 31.2 (85%) 31.62 (85%) 33.62 (85%) 33.2 (85%) 34.2 (85%) 34.62 (85%) 36.62 (85%) 36.2 (85%) 37.2 (85%) 37.62 (85%) 37.2 (85%) 38.2 (85%) 38.62 (85%) 38.1 (90%) 39.2 (85%) 40.2 (85%) 40.62 (85%) 41.1 (90%) 42.2 (85%) 24.376 24.835 25.376 25.917 25.835 26.376 26.917 26.752 27.835 28.376 28.917 29.835 30.376 29.752 30.835 31.376 33.376 32.752 33.835 34.376 36.376 35.752 36.835 37.376 36.752 37.835 38.376 37.670 38.752 39.835 40.376 40.670 41.752 24.676 25.210 25.676 26.153 26.210 26.676 27.153 27.252 28.210 28.676 29.153 30.210 30.676 30.252 31.210 31.676 33.676 33.252 34.210 34.676 36.676 36.252 37.210 37.676 37.252 38.210 38.676 38.270 39.252 40.210 40.676 41.270 42.252 45 × 2 45 × 1.5 48 × 4 48 × 3 48 × 2 43 43.5 44 45 46 48 × 1.5 46.5 50 × 3 47 50 × 2 48 50 × 1.5 48.5 注(1)等级：6H (2)基于JIS B 0211-1982标准

43.2 (85%) 43.62 (85%) 44.1 (90%) 45.2 (85%) 46.2 (85%) 46.62 (85%) 47.2 (85%) 48.2 (85%) 48.62 (85%) 42.835 43.376 43.670 44.752 45.835 46.376 46.752 47.835 48.376 43.210 43.676 44.270 45.252 46.210 46.676 47.252 48.210 48.676 螺纹下孔径表

美制粗牙螺纹 (单位：mm) 内 螺 纹 小 径 2B级 螺 纹 螺纹尺寸 钻头直径 下 孔 径 最小直径 最大直径 NO.1 -64UNC 1.55 1.57 (65%) 1.425 1.582 2 -56 1.8 1.86 (65%) 1.695 1.871 3 -48 2.1 2.14 (65%) 1.941 2.146 4 -40 2.3 2.36 (70%) 2.157 2.385 5 -40 2.6 2.69 (70%) 2.487 2.697 6 -32 2.8 2.86 (75%) 2.642 2.895 8 -32 3.4 3.52 (75%) 3.302 3.530 10 -24 3.9 3.91 (80%) 3.683 3.962 12 -24 4.5 4.57 (80%) 4.344 4.597 1/4 -20 5.1 5.25 (80%) 4.979 5.257 5/16 -18 6.6 6.72 (80%) 6.401 6.731 3/8 -16 8 8.15 (80%) 7.798 8.153 7/16 -14 9.4 9.50 (80%) 9.144 9.550 1/2 -13 10.8 11.0 (80%) 10.592 11.023 9/16 -12 12.2 12.3 (85%) 11.989 12.446 5/8 -11 13.6 13.8 (85%) 13.386 13.868 3/4 -10 16.5 16.8 (80%) 16.307 16.840 7/8 - 9 19.5 19.6 (85%) 19.177 19.761 1 -8 22.2 22.5 (85%) 21.971 22.606 1 1/8 - 7 25 25.2 (85%) 24.638 25.349 1 1/4 - 7 28.2 28.4 (85%) 27.813 28.524 1 3/8 - 6 30.8 31.0 (85%) 30.353 31.115 1 1/2 - 6 34 34.2 (85%) 33.528 34.290 1 3/4 - 5 39.5 39.8 (85%) 38.964 39.827 2 - 4 45.2 45.3 (90%) 44.679 45.593

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