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ーJIS B 1004(1975)より抜粋ーPP (2)下穴径=d−2×(ひっかかり率/100)  (3)めねじ内径の許容限界寸法は、JIS B 0209(メートル並目ねじの許容限界寸法及び公差)の規定による。  ■:5H又は1級 備考:■■■着色部はJIS B 0209の規定によるめねじ内径の許容限界寸法内にあることを示し、以下のように分類される。 ■:6H又は2級 (4)H1=0.541266P  (5)下穴径=d−2×(ひっかかり率/100)  (6)めねじ内径の許容限界寸法は、JIS B 0211(メートル細目ねじの許容限界寸法及び公差)の規定による。  ■:5H又は1級 備考:■■■着色部はJIS B 0211の規定によるめねじ内径の許容限界寸法内にあることを示し、以下のように分類される。 ■:6H又は2級 10.211.913.915.417.419.420.923.926.429.431.934.937.440.442.92.122.623.123.463.964.464.965.196.196.927.197.928.192.142.643.143.493.994.494.995.236.236.977.237.978.232.162.663.163.514.014.515.015.276.277.037.278.038.272.182.683.183.544.044.545.045.316.317.087.318.088.31 ■:7H又は3級 ■:7H又は3級 7H又は3級 2.13 2.16 2.18 2.21 2.013 2.113 2.138 − 2.59 2.62 2.65 2.68 2.459 2.571 2.599 2.639 3.05 3.08 3.11 2.850 2.975 3.010 3.050 2.98 3.01 3.39 3.43 3.47 3.51 3.55 3.242 3.382 3.422 3.466 3.85 3.89 3.93 3.97 4.01 3.688 3.838 3.878 3.924 4.31 4.35 4.39 4.44 4.48 4.134 4.294 4.334 4.384 5.13 5.19 5.24 5.30 5.35 4.917 5.107 5.153 5.217 6.13 6.19 6.24 6.30 6.35 5.917 6.107 6.153 6.217 6.92 6.99 7.05 7.12 7.19 6.647 6.859 6.912 6.982 7.92 7.99 8.05 8.12 8.19 7.647 7.859 7.912 7.982 8.62 8.70 8.78 8.86 8.94 9.03 8.376 8.612 8.676 8.751 9.62 9.70 9.78 9.86 9.9410.03 9.376 9.612 9.676 9.75110.410.10610.37110.44110.53111.83512.13512.21012.31012.213.83514.13514.21014.31014.215.29415.64915.74415.85415.717.29417.64917.74417.85417.719.719.29419.64919.74419.85420.75221.15221.25221.38221.224.223.75224.15224.25224.38226.21126.66126.77126.92126.829.21129.66129.77129.92129.832.331.67032.14532.27032.42034.67035.14535.27035.42035.337.12937.65937.79937.97937.940.12940.65940.79940.97940.943.442.58743.14743.29743.4877H又は3級2.1212.2012.221−2.6212.7012.721−3.1213.2013.221−3.4593.5713.5993.6393.9594.0714.0994.1394.4594.5714.5994.6394.9595.0715.0995.1395.1885.3385.3785.4246.1886.3386.3786.4246.9177.1077.1537.2177.1887.3387.3787.4247.9178.1078.1538.2178.1888.3388.3788.424メートル並目ねじ下穴径メートル細目ねじ下穴径ねじ基準のひっかかり高さH1(1)0.244 2.01 2.04 2.06 2.09 2.110.271 2.46 2.49 2.51 2.54 2.570.325 2.85 2.88 2.92 2.950.379 3.24 3.28 3.32 3.360.406 3.69 3.73 3.77 3.810.433 4.13 4.18 4.22 4.260.541 4.92 4.97 5.03 5.080.541 5.92 5.97 6.03 6.080.677 6.65 6.71 6.78 6.850.677 7.65 7.71 7.78 7.850.812 8.38 8.46 8.540.812 9.38 9.46 9.540.94710.110.312.11.08311.814.11.08313.815.61.35315.317.61.35317.31.35319.319.621.11.62420.824.11.62423.826.61.89426.229.61.89429.22.16531.732.135.12.16534.737.62.43637.140.62.43640.12.70642.643.1ねじの呼び外径dピッチM2.5 2.5000.45M3 3.0000.5M3.5 3.5000.6M4 4.0000.7M4.5 4.5000.75 5.0000.8M5 6.0001M6M7 7.0001 8.0001.25M8 9.0001.25M910.0001.5M1011.0001.5M11M1212.0001.7514.0002M1416.0002M1618.0002.5M1820.0002.5M20M2222.0002.524.0003M2427.0003M2730.0003.5M3033.0003.5M33M3636.000439.0004M3942.0004.5M4245.0004.5M45M4848.0005 (1)H1=0.541266P ねじ基準のひっかかり高さH1(4)0.1890.1890.1890.2710.2710.2710.2710.4060.4060.5410.4060.5410.406ねじの呼び外径dピッチM2.5M3M3.5M4M4.5M5M5.5M6M72.5003.0003.5004.0004.5005.0005.5006.0007.0000.350.350.350.50.50.50.50.750.7510.7510.75M88.000M99.000下穴径(2)系列10.612.414.416.018.020.021.624.627.230.232.835.838.341.343.910.712.514.516.118.120.121.724.727.330.333.036.038.641.644.210.812.614.616.218.220.221.924.927.530.533.236.238.841.844.510.512.314.315.817.819.821.424.427.030.032.535.538.141.143.7下穴径(5)系列2.202.703.203.574.074.575.075.356.357.137.358.138.352.222.723.223.594.094.595.095.396.397.197.398.198.392.242.743.243.624.124.625.125.436.437.247.438.248.432.252.753.253.654.154.655.155.476.477.307.478.308.47(参考)めねじ内径(3)最大許容差最小許容寸法10.912.714.716.418.420.422.125.127.730.733.436.439.142.144.8(参考)めねじ内径(6)最大許容差最小許容寸法2.272.773.273.684.184.685.185.516.517.357.518.358.516H又は2級5H又は1級605H又は1級6H又は2級6011709085100951009590857570806580757065ねじ下穴径

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