1、攻丝底孔的使用参数表一、螺紋下孔徑表1、公制粗牙螺紋 JIS B 0209-1982(單位：mm)內螺紋小徑螺纹尺寸 钻头直径 螺纹下孔徑最小直径 最大直径M 1 0.25 0.75 0.78 (80%) 0.729 0.7851.1 0.25 0.85 0.88 (80%) 0.829 0.8851.2 0.25 0.95 0.98 (80%) 0.929 0.9851.4 0.3 1.1 1.14 (80%) 1.075 1.1421.6 0.35 1.25 1.32 (75%) 1.221 1.3211.8 0.35 1.45 1.52 (75%) 1.421 1.5212 0.4 1.
2、6 1.65 (80%) 1.567 1.6792.2 0.45 1.75 1.83 (75%) 1.713 1.8382.5 0.45 2.1 2.13 (75%) 2.013 2.1383 0.5 2.5 2.59 (75%) 2.459 2.5993.5 0.6 2.9 3.01 (75%) 2.850 3.0104 0.7 3.3 3.39 (80%) 3.242 3.4224.5 0.75 3.8 3.85 (80%) 3.688 3.8785 0.8 4.2 4.31 (80%) 4.134 4.3346 1 5 5.13 (80%) 4.917 5.1537 1 6 6.13 (
3、80%) 5.917 6.1538 1.25 6.8 6.85 (85%) 6.647 6.9129 1.25 7.8 7.85 (85%) 7.647 7.91210 1.5 8.5 8.62 (85%) 8.376 8.67611 1.5 9.5 9.62 (85%) 9.376 9.67612 1.75 10.3 10.40 (85%) 10.106 10.44114 2 12 12.2 (85%) 11.835 12.21016 2 14 14.2 (85%) 13.835 14.21018 2.5 15.5 15.7 (85%) 15.294 15.74420 2.5 17.5 17
4、.7 (85%) 17.294 17.74422 2.5 19.5 19.2 (85%) 19.294 19.74424 3 21 21.2 (85%) 20.752 21.25227 3 24 24.2 (85%) 23.752 24.25230 3.5 26.5 26.6 (90%) 26.211 26.77133 3.5 29.5 29.6 (90%) 29.211 29.77136 4 32 32.1 (90%) 31.670 32.27039 4 35 35.1 (90%) 34.670 35.27042 4.5 37.5 37.6 (90%) 37.129 37.79945 4.5
5、 40.5 40.6 (90%) 40.129 40.79948 5 43 43.1 (90%) 42.587 43.297註(1)M1.4 以下等級：5H、M1.6 以上等級：6H (2)基於 JIS B 0209-1982 標準2、公制細牙螺紋-01 JIS B 0211-1982(單位：mm)內螺紋小徑螺纹尺寸 钻头直径 螺纹下孔徑最小直径 最大直径M 2.5 0.35 2.2 2.22 (75%) 2.121 2.2213 0.35 2.7 2.72 (75%) 2.621 2.7213.5 0.35 3.2 3.22 (75%) 3.121 3.2214 0.5 3.5 3.59 (
6、75%) 3.459 3.5994.5 0.5 4 4.09 (75%) 3.959 4.0995 0.5 4.5 4.59 (75%) 4.459 4.5995.5 0.5 5 5.09 (75%) 4.959 5.0996 0.75 5.3 5.35 (80%) 5.188 5.3787 0.75 6.3 6.35 (80%) 6.188 6.3788 1 7 7.13 (80%) 6.917 7.1538 0.75 7.3 7.35 (80%) 7.188 7.3789 1 8 8.13 (80%) 7.917 8.1539 0.75 8.3 8.35 (80%) 8.188 8.378
7、10 1.25 8.8 8.85 (85%) 8.647 8.91210 1 9 9.13 (80%) 8.917 9.15310 0.75 9.3 9.35 (80%) 9.188 9.37811 1 10 10.13 (80%) 9.917 10.15311 0.75 10.3 10.35 (80%) 10.188 10.37812 1.5 10.5 10.62 (85%) 10.376 10.67612 1.25 10.8 10.85 (85%) 10.647 10.91212 1 11 11.13 (80%) 10.917 11.15314 1.5 12.5 12.62 (85%) 1
8、2.376 12.67614 1 13 13.13 (80%) 12.917 13.15315 1.5 13.5 13.62 (85%) 13.376 13.67615 1 14 14.13 (80%) 13.917 14.15316 1.5 14.5 14.62 (85%) 14.376 14.67616 1 15 15.13 (80%) 14.917 15.15317 1.5 15.5 15.62 (85%) 15.376 15.67617 1 16 16.13 (80%) 15.917 16.15318 2 16 16.2 (85%) 15.835 16.21018 1.5 16.5 1
9、6.62 (85%) 16.376 16.67618 1 17 17.13 (80%) 16.917 17.15320 2 18 18.2 (85%) 17.835 18.21020 1.5 18.5 18.62 (85%) 18.376 18.67620 1 19 19.13 (80%) 18.917 19.15322 2 20 20.2 (85%) 19.835 20.21022 1.5 20.5 20.62 (85%) 20.376 20.67622 1 21 21.13 (80%) 20.917 21.15324 2 22 22.2 (85%) 21.835 22.21024 1.5
10、22.5 22.62 (85%) 22.376 22.67624 1 23 23.13 (80%) 22.917 23.15325 2 23 23.2 (85%) 22.835 23.21025 1.5 23.5 23.62 (85%) 23.376 23.67625 1 24 24.13 (80%) 23.917 24.153M 26 1.5 24.5 24.62 (85%) 24.376 24.67627 2 25 25.2 (85%) 24.835 25.21027 1.5 25.5 25.62 (85%) 25.376 25.67627 1 26 26.13 (80%) 25.917
11、26.15328 2 26 26.2 (85%) 25.835 26.21028 1.5 26.5 26.62 (85%) 26.376 26.67628 1 27 27.13 (80%) 26.917 27.15330 3 27 27.2 (85%) 26.752 27.25230 2 28 28.2 (85%) 27.835 28.21030 1.5 28.5 28.62 (85%) 28.376 28.67630 1 29 29.13 (80%) 28.917 29.15332 2 30 30.2 (85%) 29.835 30.21032 1.5 30.5 30.62 (85%) 30
12、.376 30.67633 3 30 30.2 (85%) 29.752 30.25233 2 31 31.2 (85%) 30.835 31.21033 1.5 31.5 31.62 (85%) 31.376 31.67635 1.5 33.5 33.62 (85%) 33.376 33.67636 3 33 33.2 (85%) 32.752 33.25236 2 34 34.2 (85%) 33.835 34.21036 1.5 34.5 34.62 (85%) 34.376 34.67638 1.5 36.5 36.62 (85%) 36.376 36.67639 3 36 36.2
13、(85%) 35.752 36.25239 2 37 37.2 (85%) 36.835 37.21039 1.5 37.5 37.62 (85%) 37.376 37.67640 3 37 37.2 (85%) 36.752 37.25240 2 38 38.2 (85%) 37.835 38.21040 1.5 38.5 38.62 (85%) 38.376 38.67642 4 38 38.1 (90%) 37.670 38.27042 3 39 39.2 (85%) 38.752 39.25242 2 40 40.2 (85%) 39.835 40.21042 1.5 40.5 40.
14、62 (85%) 40.376 40.67645 4 41 41.1 (90%) 40.670 41.27045 3 42 42.2 (85%) 41.752 42.25245 2 43 43.2 (85%) 42.835 43.21045 1.5 43.5 43.62 (85%) 43.376 43.67648 4 44 44.1 (90%) 43.670 44.27048 3 45 45.2 (85%) 44.752 45.25248 2 46 46.2 (85%)45.835 46.21048 1.5 46.5 46.62 (85%) 46.376 46.67650 3 47 47.2
15、(85%) 46.752 47.25250 2 48 48.2 (85%) 47.835 48.21050 1.5 48.5 48.62 (85%) 48.376 48.676註(1)等級：6H(2)基於 JIS B 0211-1982 標準3、美制粗牙螺紋 (單位： mm)內螺紋小徑螺纹尺寸 钻头直径 2B 级螺纹下孔徑最小直径 最大直径NO.1 -64UNC 1.55 1.57 (65%) 1.425 1.5822 -56 1.8 1.86 (65%) 1.695 1.8713 -48 2.1 2.14 (65%) 1.941 2.1464 -40 2.3 2.36 (70%) 2.157
16、 2.3855 -40 2.6 2.69 (70%) 2.487 2.6976 -32 2.8 2.86 (75%) 2.642 2.8958 -32 3.4 3.52 (75%) 3.302 3.53010 -24 3.9 3.91 (80%) 3.683 3.96212 -24 4.5 4.57 (80%) 4.344 4.5971/4 -20 5.1 5.25 (80%) 4.979 5.2575/16 -18 6.6 6.72 (80%) 6.401 6.7313/8 -16 8 8.15 (80%) 7.798 8.1537/16 -14 9.4 9.50 (80%) 9.144 9
17、.5501/2 -13 10.8 11.0 (80%) 10.592 11.0239/16 -12 12.2 12.3 (85%) 11.989 12.4465/8 -11 13.6 13.8 (85%) 13.386 13.8683/4 -10 16.5 16.8 (80%) 16.307 16.8407/8 - 9 19.5 19.6 (85%) 19.177 19.7611 - 8 22.2 22.5 (85%) 21.971 22.6061 1/8 - 7 25 25.2 (85%) 24.638 25.3491 1/4 - 7 28.2 28.4 (85%) 27.813 28.52
18、41 3/8 - 6 30.8 31.0 (85%) 30.353 31.1151 1/2 - 6 34 34.2 (85%) 33.528 34.2901 3/4 - 5 39.5 39.8 (85%) 38.964 39.8272 - 4 45.2 45.3 (90%) 44.679 45.5934、美制細牙螺紋 (單位：mm)內螺紋小徑螺纹尺寸 钻头直径2B 级螺纹下孔徑最小直径 最大直径NO. 0 -80UNF 1.25 1.30 (65%) 1.182 1.3051 -72 1.55 1.61 (65%) 1.474 1.6122 -64 1.85 1.90 (65%) 1.756
19、1.9123 -56 2.1 2.17 (70%) 2.025 2.1974 -48 2.4 2.44 (70%) 2.271 2.4585 -44 2.7 2.74 (70%) 2.551 2.7406 -40 2.9 3.02 (70%) 2.820 3.0228 -36 3.5 3.59 (75%) 3.404 3.60610 -32 4.1 4.14 (80%) 3.963 4.16512 -28 4.6 4.70 (80%) 4.496 4.7241/4 -28 5.5 5.56 (80%) 5.360 5.5885/16 -24 6.9 7.02 (80%) 6.782 7.035
20、3/8 -24 8.5 8.61 (80%) 8.382 8.6367/16 -20 9.9 10.01 (80%) 9.729 10.0331/2 -20 11.5 11.60 (80%) 11.329 11.6079/16 -18 12.9 13.07 (80%) 12.751 13.0815/8 -18 14.5 14.65 (80%) 14.351 14.6813/4 -16 17.5 17.59 (85%) 17.323 17.6787/8 -14 20.5 20.6 (85%) 20.270 20.6751 -12 23.2 23.5 (85%) 23.114 23.5711 1/
21、8 -12 26.5 26.7 (80%) 26.289 26.7461 1/4 -12 29.5 29.9 (80%) 29.464 29.9211 3/8 -12 32.8 33.0 (85%) 32.639 33.0961 1/2 -12 36 36.2 (85%) 35.814 36.2715、英制粗牙螺紋 (單位：mm) 下 孔 徑 嵌 合 率螺紋尺寸A 列(硬材質)B 列(軟材質)A 列直徑 B 列直徑 內螺紋最小徑內螺紋最大徑W 1/8 2.6 2.5 70.7 83.0 70.0 88.33/16 3.7 3.6 78.4 85.8 70.0 88.31/4 5.1 5.0 7
22、6.9 83.0 70.5 88.35/16 6.6 6.5 74.0 99.5 70.1 88.43/8 8.0 7.9 75.0 80.0 69.5 88.27/16 9.4 9.3 73.7 80.0 69.0 88.81/2 10.7 10.5 73.8 81.2 69.0 88.29/16 12.3 12.0 73.4 84.4 69.0 88.25/8 13.7 13.5 73.5 80.3 69.6 88.53/4 16.7 16.5 72.3 78.4 69.6 88.37/8 19.5 19.3 75.4 80.9 70.1 88.41 22.4 22.0 73.8 83.6
23、 71.0 88.21 1/8 25.0 24.8 76.9 81.3 72.0 88.41 1/4 28.3 28.0 74.3 80.7 72.0 88.41 3/8 30.5 30.3 81.6 85.3 73.8 88.61 1/2 33.8 33.5 79.3 84.8 73.8 88.61 5/8 36.0 35.7 81.1 85.7 74.8 88.31 3/4 39.2 39.0 80.7 83.8 74.8 88.31 7/8 41.8 41.5 80.6 84.7 74.7 88.42 45.0 44.7 80.2 84.4 74.7 88.46、英制管用螺紋 (單位：m
24、m) JIS B 0203 JIS B 2301錐管內螺紋 Rc(PT) 平行內螺紋 Rp(PS) 錐管內螺紋管用螺紋尺寸計 算 值 下 孔 徑 計 算 值 下 孔 徑 計 算 值 下 孔 徑1/16 6.230 6.2 6.490 6.5 1/8 8.235 8.2 8.495 8.5 8.191 8.21/4 10.941 10.9 11.341 11.4 10.945 10.93/8 14.428 14.4 14.846 14.9 14.388 14.41/2 17.950 18 18.489 18.5 17.943 183/4 23.349 23 23.975 24 23.305 23
25、1 29.423 29 30.111 30 29.353 291 1/4 37.940 38 38.772 39 37.890 381 1/2 43.833 44 44.565 45 43.720 432 55.412 55 56.476 56 55.406 552 1/2 70.701 71 72.009 72 70.788 703 83.201 83 84.709 85 83.364 833 1/2 95.547 96 97.155 97 95.747 954 107.834 108 109.855 110 108.322 1085 133.110 133 135.255 135 133.
26、597 1336 158.510 159 160.655 161 158.810 1587 183.360 183 185.954 1868 208.560 209 211.354 2129 233.960 234 236.754 23710 259.166 259 262.154 26212 309.747 310 312.875 3137、美制管用耐密斜行螺紋(NPTFNPSF) (單位：mm)斜行螺紋(NPTF) 平行螺紋(NPSF) 鑽頭直徑 鑽頭直徑 管用螺紋尺寸使用鉸刀場合 不使用鉸刀場合1/16 0.234 ( 5.94) 0.246 ( 6.25) 1/4 0.250 ( 6.
27、35)1/8 21/64 0.328 ( 8.33) 0.339 ( 8.61) 11/32 0.344 ( 8.74)1/4 27/64 0.422 (10.72) 7/16 0.438 (11.13) 0.444 (11.28)3/8 9/16 0.562 (14.27) 37/64 0.578 (14.68) 37/64 0.578 (14.68)1/2 11/16 0.688 (17.48) 45/64 0.703 (17.86) 23/32 0.719 (18.26)3/4 57/64 0.891 (22.63) 59/64 0.922 (23.42) 0.922 (23.42)1
28、1 1/8 1.125 (28.58) 1 5/32 1.156 (29.36) 1 5/32 1.156 (29.36)1 1/4 1 15/32 1.469 (37.31) 1 1/2 1.500 (38.10) 1 1/2 1 45/64 1.703 (43.26) 1 47/64 1.734 (44.04) 2 2 3/16 2.188 (55.58) 2 7/32 2.219 (56.36) 2 1/2 2 19/32 2.594 (65.89) 2 41/64 2.641 (67.08) 上述鑽頭直徑來源於美制管用耐密斜行螺紋 ANSI B1.20.31957 Dryseal Pi
29、pe Threads (Inch)標準8、公制螺紋(NRT) (單位：mm)1 級螺紋用下孔徑 2 級螺紋用下孔徑螺紋尺寸RH精度最小最大(嵌合率)RH精度最小最大(嵌合率)M 1 0.25 2 0.87 0.89 (10085) 4 0.90 0.92 (10080)1.10.25 2 0.97 0.99 (10085) 4 1.00 1.02 (10080)1.20.25 2 1.07 1.09 (10085) 4 1.10 1.12 (10080)1.40.3 2 1.244 1.263 (10085) 4 1.270 1.294 (10080)1.70.35 2 1.51 1.54 (
30、10080) 4 1.54 1.58 (10075)2 0.4 2 1.78 1.82 (10080) 4 1.81 1.85 (10075)2.30.4 2 2.08 2.12 (10080) 4 2.11 2.15 (10075)2.50.45 2 2.25 2.29 (10080) 4 2.28 2.33 (10075)2.60.45 2 2.35 2.39 (10080) 4 2.38 2.43 (10075)3 0.5 3 2.74 2.78 (10080) 5 2.76 2.81 (10075)3.50.6 3 3.18 3.21 (10085) 5 3.20 3.26 (1007
31、5)4 0.7 4 3.63 3.67 (10085) 6 3.65 3.70 (10085)5 0.8 4 4.57 4.62 (10085) 6 4.59 4.66 (10080)6 1 4 5.45 5.51 (10085) 7 5.48 5.57 (10080)7 1 4 6.45 6.51 (10085) 7 6.48 6.57 (10080)8 1.25 5 7.31 7.38 (10085) 7 7.34 7.41 (10085)8 1 4 7.45 7.51 (10085) 7 7.48 7.57 (10080)10 1.5 5 9.16 9.22 (10090) 7 9.18
32、 9.28 (10085)10 1.25 5 9.31 9.38 (10085) 7 9.34 9.41 (10085)10 1 5 9.46 9.52 (10085) 7 9.48 9.57 (10080)12 1.75 5 11.01 11.08 (10090) 8 11.05 11.15 (10085)12 1.5 5 11.16 11.22 (10090) 7 11.18 11.28 (10085)12 1.25 5 11.31 11.38 (10085) 7 11.34 11.41 (10085)12 1 5 11.46 11.52 (10085) 7 11.48 11.57 (10
33、080)14 2 6 12.83 12.95 (10090) 10 12.92 13.04 (10085)14 1.5 5 13.16 13.22 (10090) 9 13.21 13.30 (10085)16 2 6 14.87 14.95 (10090) 10 14.92 15.04 (10085)16 1.5 5 15.16 15.22 (10090) 9 15.21 15.30 (10080)18 2.5 6 16.57 16.67 (10090) 11 16.63 16.78 (10085)18 1.5 6 17.17 17.23 (10090) 10 17.22 17.31 (10
34、085)20 2.5 6 18.57 18.67 (10090) 11 18.63 18.78 (10085)20 1.5 6 19.17 19.23 (10090) 10 19.22 19.31 (10085)9、美制粗牙螺紋(NRT) (單位：mm)螺紋尺寸 2B 級螺紋用下孔徑 3B 級螺紋用下孔徑RH精 度最小最大(嵌合率)RH精 度最小最大(嵌合率)NO. 2-56UNC 4 1.96 2.02 (10065) 3 1.95 2.01 (10065)3-48 4 2.25 2.32 (10065) 3 2.23 2.31 (10065)4-40 5 2.52 2.60 (10070)
35、 3 2.50 2.58 (10070)5-40 5 2.86 2.93 (10070) 3 2.83 2.91 (10070)6-32 5 3.09 3.17 (10075) 3 3.06 3.14 (10075)8-32 6 3.75 3.83 (10075) 4 3.74 3.82 (10075)10-24 6 4.26 4.35 (10080) 4 4.24 4.32 (10080)12-24 6 4.92 5.01 (10080) 4 4.90 4.96 (10085)1/4 -20 6 5.66 5.76 (10080) 4 5.64 5.74 (10080)5/16 -18 7
36、7.18 7.29 (10080) 5 7.15 7.24 (10085)3/8 -16 7 8.66 8.78 (10080) 5 8.63 8.73 (10085)7/16 -14 7 10.11 10.25 (10080) 5 10.08 10.19 (10085)1/2 -13 8 10.62 11.78 (10080) 6 11.60 11.68 (10090)9/16 -12 10 13.14 13.27 (10085) 8 13.11 13.24 (10085)5/8 -11 11 14.62 14.76 (10085) 8 14.58 14.67 (10090)3/4 -10
37、12 17.67 17.88 (10080) 9 17.63 17.74 (10090)7/8 - 9 12 20.68 20.85 (10085) 9 20.64 20.75 (10090)1 - 8 13 23.65 23.84 (10085) 10 23.61 23.74 (10090)二、螺紋下孔徑表(無屑絲攻用)1、美制細牙螺紋(NRT) (單位：mm)2B 級螺紋用下孔徑 3B 級螺紋用下孔徑螺紋尺寸RH精 度最小最大(嵌合率)RH精 度最小最大(嵌合率)NO. 2-64UNF 3 1.98 2.04 (10065) 2 1.97 2.03 (10065)3-56 4 2.29 2
38、.35 (10065) 3 2.28 2.34 (10065)4-48 4 2.57 2.64 (10070) 3 2.56 2.63 (10070)5-44 4 2.88 2.95 (10070) 3 2.87 2.94 (10070)6-40 5 3.19 3.26 (10070) 3 3.16 3.22 (10075)8-36 5 3.80 3.88 (10075) 4 3.79 3.86 (10075)10-32 5 4.41 4.48 (10080) 4 4.40 4.46 (10080)12-28 5 5.00 5.08 (10080) 4 4.99 5.06 (10080)1/4
39、 -28 5 5.86 5.93 (10080) 4 5.85 5.92 (10080)5/16-24 6 7.38 7.46 (10080) 5 7.36 7.43 (10085)3/8 -24 6 8.96 9.05 (10080) 5 8.95 9.02 (10085)7/16-20 7 10.44 10.54 (10080) 5 10.41 10.49 (10085)1/2 -20 7 12.02 12.12 (10080) 5 12.00 12.05 (10090)9/16-18 9 13.55 13.66 (10080) 7 13.53 13.58 (10090)5/8 -18 9
40、 15.14 15.25 (10080) 7 15.11 15.17 (10090)3/4 -16 10 18.22 18.32 (10085) 7 18.18 18.25 (10090)7/8 -14 11 21.27 21.38 (10085) 8 21.23 21.27 (10095)1 - 12 12 24.28 24.41 (10085) 9 24.24 24.32 (10090)2、英制管用平行螺紋(NRT) (單位：mm)螺紋尺寸 RH 精 度 最小最大(嵌合率)PF 1/8 6 9.24 9.35 (10080)1/4 7 12.4112.62 (10075)3/8 7 15.
41、9216.12 (10075)1/2 8 19.9320.15 (10080)3/4 8 25.4125.64 (10080)3、公制螺紋(HRT) (單位：mm)1 級螺紋用下孔徑 2 級螺紋用下孔徑螺紋尺寸RH精 度最小最大(嵌合率)RH精 度最小最大(嵌合率)M 1 0.25 2 0.8580.879 (10085) 4 0.8580.887 (10080)1.20.25 2 1.0581.079 (10085) 4 1.0581.087 (10080)1.40.3 2 1.23 1.26 (10085) 4 1.23 1.26 (10080)1.60.35 2 1.40 1.44 (1
42、0080) 4 1.40 1.45 (10075)1.70.35 1.50 1.54 (10080) 4 1.50 1.55 (10075)1.80.35 2 1.60 1.64 (10080) 4 1.60 1.65 (10075)2 0.4 2 1.77 1.82 (10080) 4 1.77 1.82 (10080)2 0.25 2 1.8581.887 (10080) 1.8581.887 (10080)2.30.4 2.07 2.12 (10080) 4 2.07 2.13 (10075)2.50.45 3 2.24 2.30 (10080) 5 2.24 2.31 (10075)2
43、.60.45 2.34 2.40 (10080) 5 2.34 2.41 (10075)3 0.6 3 2.72 2.73 (10090) 5 2.66 2.73 (10090)3 0.5 5 2.72 2.77 (10080) 6 2.72 2.78 (10075)3 0.35 3 2.80 2.84 (10080) 5 2.80 2.85 (10075)3.50.6 3 3.16 3.21 (10085) 5 3.16 3.25 (10075)4 0.75 3 3.57 3.64 (10085) 6 3.57 3.64 (10085)4 0.7 6 3.60 3.66 (10085) 7
44、3.60 3.66 (10085)4 0.5 3 3.71 3.77 (10080) 6 3.71 3.79 (10075)5 0.9 3 4.49 4.59 (10085) 7 4.49 4.59 (10085)5 0.8 3 4.55 4.62 (10085) 8 4.55 4.64 (10080)5 0.5 3 2.72 4.77 (10080) 6 4.72 4.79 (10075)6 1 4 5.43 5.52 (10085) 7 5.43 5.55 (10080)6 0.75 3 5.57 5.64 (10085) 7 5.57 5.66 (10080)4、公制粗牙螺紋 HL-NR
45、T (單位：mm)螺 紋 尺 寸 RH 精 度 最小最大(嵌合率)M 3 0.5 3 3.393.43 (10080)4 0.7 4 4.544.58 (10085)5 0.8 4 5.615.66 (10085)6 1 4 6.756.81 (10085)8 1.25 5 8.939.01 (10085)10 1.5 5 11.1111.17 (10090)10 1.25 5 10.9311.01 (10085)12 1.75 5 13.2813.17 (10090)12 1.5 5 13.1113.17 (10090)12 1.25 5 12.9313.01 (10085)三、螺紋下孔徑表(護
