粗牙普通螺紋基本尺寸 公稱直徑-d(毫米）螺距-t（毫米）(底孔) m10.250.8 m20.401.6 m30.502.5 m40.703.3 m50.804.2 m61.005 m71.006 m81.256.8 m91.257.8 m101.508.5 m111.509.5 m121.7510.3 m142.0012 m162.0014 m182.5015.5 m202.5017.5 m222.5019.5 m243.0021 m273.0024 m303.5026.5 m333.5029.5 m364.0032 m394.0035 m424.5037.5 m454.5040.5 m485.0043 m525.

公制螺紋規(guī)格一覽表 2009-10-9外螺紋大徑(單位mm)-----------------內(nèi)螺紋小徑(單位mm)----------------- 序號(hào)規(guī)格型號(hào)最大最小公差最大最小公差 1m10*19.9749.7940.1809.1578.9170.240 2m12*1.511.96811.7320.23610.67610.3760.300 3m14*1.513.96813.7320.23612.67612.3760.300 4m16*1.515.96815.7320.23614.67614.3760.300 5m18*1.517.96817.7320.23616.67616.3760.300 6m20*1.519.96819.7320.23618.67618.376

管螺紋規(guī)格公稱直徑螺距公稱長(zhǎng)度鉆孔深度攻絲深度鉆孔直徑(mm) l1(mm)l2(mm)切削絲錐擠壓絲錐 尺寸牙數(shù)nd(mm)p(mm)xdl(mm)minminminmaxminmax 1/16287.7230.9070.5d3.867.945.687.907.998.428.51 1/16287.7230.9070.75d5.799.877.617.907.998.428.51 1/16287.7230.9071d7.7211.809.547.907.998.428.51 1/16287.7230.9071.5d11.5815.6713.407.907.998.428.51 1/16287.7230.9072d15.4519.5317.26

大頭根徑 d1 小頭扣尖 直徑 d2 應(yīng)力減載 槽直徑 d3 椎體長(zhǎng)度 l 鏜孔直徑 d0 端面扣尖 直徑 d1 扣長(zhǎng)不 小于 l1 應(yīng)力減載 槽扣長(zhǎng) lx 外徑 d 內(nèi)徑 d 倒角 d0 2a311：4560.80866.67547.62552.276.268.361.42392.166.779.425.42 3 /8reg 2311：4569.60576.253.93561.788.977.7970.948104.879.495.331.890.8827/8reg 3311：4582.29388.88865.07574.495.290.4983.636111.185.710838.1103.5831/2reg 4311：45110.868117.46390.46

mm sizethreaddesignationclassmaxminmaxminmax 0.25m0.25x0.0756g0.2500.2350.2010.1870.160 m0.25x0.0754g6g0.2500.2350.2010.1930.160 0.3m0.3x0.086g0.3000.2840.2480.2340.204 m0.3x0.084g6g0.3000.2840.2480.2390.204 m0.3x0.096g0.3000.2830.2420.2260.192 m0.3x0.094g6g0.3000.2830.2420.2330.192 0.35m0.35x0.096g0.3500.3330.2920.2770.242 m0.35x0.094g6g0.350

公制螺紋/英制螺紋規(guī)格一覽表 發(fā)布時(shí)間：10-06-21來(lái)源：點(diǎn)擊量：5424字段選擇：大中小 2009-10-9 外螺紋大徑（單位mm）－－－－－－－ －－－－－－－－－- 內(nèi)螺紋小徑（單位mm）－－－－－－－ －－－－－－－－－- 序號(hào)規(guī)格型號(hào)最大最小公差最大最小公差 1m10*19.9749.7940.1809.1578.9170.240 2m12*1.511.96811.7320.23610.67610.3760.300 3m14*1.513.96813.7320.23612.67612.3760.300 4m16*1.515.96815.7320.23614.67614.3760.300 5m18*1.517.96817.7320.23616.67616.3760.30

1 公制外螺紋（細(xì)牙） 公稱直徑× 螺距 大徑中徑小徑螺胚直徑 最大最小最大最小最大最小最大 m3x0.352.9812.8962.7542.6872.6022.712.73 m4x0.53.9803.8743.6553.5803.4393.603.63 m5×0.54.9804.8744.6554.5804.4394.604.63 m6×0.755.9785.8385.4915.3915.1665.425.46 m8×0.757.9787.8387.4917.3917.1667.427.46 m8×17.9747.7947.3247.2126.8917.267.29 m10×0.759.9789.8389.4919.3919.1669.429.46 m10×

公制外螺紋（6g）常用規(guī)格極限尺寸表（粗牙） 公稱直徑×螺距精度大徑中徑小徑螺胚直 徑 最大最小最大最小最大最小最大 m3×0.56g2.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.679

壓力表接頭螺紋規(guī)格與壓力表表盤直徑有一定的關(guān)聯(lián)關(guān)系, 一般 壓力表表盤直徑與螺紋關(guān)系如下： y-50y-60y-75y-100y-150型號(hào)100ф60 150ф75 ф50 фф表盤直徑×m201.5m14×1.5公制螺紋zg1/4? 尳?、??尸、3/8npt 常用螺紋??尷?就土、??尲、1/2npt英制螺紋 1/4npt 2.5 1.6 精度等級(jí) ~0.1~0,~0.1~0.06,~0.1~0.15,~0.1~0.3,~0.1~0.5,~0.1 ~0.9,測(cè)量范圍 ~0.1~1.5,~0.1~2.4,0~0.1,0~0.16,0~0.25,0~0.4,0~0.6, 0~1.0,0~1.6,0~2.5,0~4.0,0~6.0,0~10,0~16,0~25,0~40, 0~60,0~100 ）（mpa 壓力表螺紋接頭形式

壓力表接頭螺紋規(guī)格與壓力表表盤直徑有一定的關(guān)聯(lián)關(guān)系,一般 壓力表表盤直徑與螺紋關(guān)系如下： 型號(hào)y-50y-60y-75y-100y-150 表盤直徑ф50ф60ф75ф100ф150 常用螺紋 公制螺紋m14×1.5m20×1.5 英制螺紋 zg1/4"zg3/8"、g3/8"、3/8npt g1/4"zg1/2"、g1/2"、1/2npt 1/4npt 精度等級(jí)2.51.6 測(cè)量范圍~0.1~0,~0.1~0.06,~0.1~0.15,~0.1~0.3,~0.1~0.5,~0.1~0.9, ~0.1~1.5,~0.1~2.4,0~0.1,0~0.16,0~0.25,0~0.4,0~0.6, 0~1.0,0~1.6,0~2.5,0~4.0,0~6.0,0~10,0~16,0~25,0~40, （mpa）0~60,0~100 壓力表螺紋接頭形式規(guī)格尺寸

101520253240506580100 1/4"1/2"3/4"1"11/4"11/2"2"21/2"3"4" 鋼管a17.221.326.933.742.448.360.376.188.9114.3 外徑b141825323845577689108 125150200250300350400450500600 5"6"8"10"12"14"16"18"20"24" 鋼管a139.7168.3219.1273323.9355.36406.4457508610 外徑b133159219273325377426480530630 700800900100012001400160018002000 28"32"

螺栓規(guī)格頂帽直徑頂帽長(zhǎng)度螺距頂帽倒角 m4740.70.3 m58.550.80.3 m610610.3 m812.581.250.3 m1015101.50.5 m1218121.750.5 m14211420.5 m16241620.5 m2030202.51 m24362431 m3042303.51 m36503641.6 m4258424.21.6

螺紋規(guī)格表 平行螺紋 螺紋的種類記號(hào)規(guī)格螺紋山的角度size推拔牙規(guī)規(guī)格 公制普通螺紋 jisb0205b0215jisb0251 jisb02094h、5h、6h、7h 公制細(xì)螺紋jisb0207b0215 4h、6h、8g、8g jisb0052 m jisb02111~300 公制普通螺紋 jisb0205jisb0251 jisb0209 1級(jí)、2級(jí)、3級(jí) 付屬書(shū) 公制細(xì)螺紋 jisb0207jisb0252 jisb0211付屬書(shū) 美制普通螺紋uncjisb0206no.1~43b、2b、1bjisb0255jisb0210 美制細(xì)螺紋unfjisb0208no.0~11/23a、2a、1aji

公制外螺紋（粗牙） 公稱直徑× 螺距 大徑中徑小徑螺胚直徑 最大最小最大最小最大最小最大 m3×0.52.9802.8742.6552.5802.4392.602.63 m4×0.73.9783.8383.5233.4333.2203.473.50 m5×0.84.9764.8264.4564.3614.1104.404.43 m6×15.9745.7945.3245.2124.8915.265.29 m8×1.257.9727.7607.1607.0426.6197.107.14 m10×1.59.9689.7328.9948.8628.3448.928.96 m12×1.7511.96611.70110.82910.67910.07210.7510.79 m

第一章國(guó)標(biāo)螺紋的一般知識(shí) 一.螺紋的分類 1.螺紋分內(nèi)螺紋和外螺紋兩種； 2.按牙形分可分為：１）三角形螺紋２）梯形螺紋３）矩形螺紋４）鋸齒形螺紋； 3.按線數(shù)分單頭螺紋和多頭螺紋； 4.按旋入方向分左旋螺紋和右旋螺紋兩種,右旋不標(biāo)注，左旋加lh，如m24×1.5lh； 5.按用途不同分有：米制普通螺紋、用螺紋密封的管螺紋、非螺紋密封的管螺紋、60°圓錐管螺 紋、米制錐螺紋等 二.米制普通螺紋 1.米制普通螺紋用大寫(xiě)m表示，牙型角2α=60°（α表示牙型半角）； 2.米制普通螺紋按螺距分粗牙普通螺紋和細(xì)牙普通螺紋兩種； 2.1.粗牙普通螺紋標(biāo)記一般不標(biāo)明螺距，如m20表示粗牙螺紋；細(xì)牙螺紋標(biāo)記必須標(biāo)明螺距， 如m30×1.5表示細(xì)牙螺紋、其中螺距為1.5。 2.2.普通螺紋用于機(jī)械零件之間的連接和緊固，一

npt英制螺紋標(biāo)準(zhǔn)與技術(shù)數(shù)據(jù) 螺紋規(guī)格螺距外徑c1底徑螺紋標(biāo)號(hào)螺牙角度備注 npt1/41.41113.6161860 npt3/81.41117.0551860 npt1/21.81421.2231460 npt5/81.81426.5681460 npt12.20833.227111/260 npt11/42.20841.984111/260 npt11/22.20848.053111/260 npt22.20860.091111/260 npt21/23.17572.699860 npt33.17588.608860 npt31/23.175100.013860 pt：美國(guó)標(biāo)準(zhǔn)的60度錐管螺紋 美制一般密封管螺紋的基本尺寸： 尺寸 代號(hào) 牙數(shù)

公制外螺紋(6g)常用規(guī)格極限尺寸表(粗牙) 公稱直徑×螺 距 螺紋精度等 級(jí) 大徑中徑小徑螺胚直徑 最大最小最大最小最大最小最大 m3×0.5 6g 2.9802.8742.6552.5802.439 2.602.63 m4×0.7 3.9783.8383.5233.4333.220 3.473.50 m5×0.8 4.9764.8264.4564.3614.110 4.404.43 m6×1 5.9745.7945.3245.2124.891 5.265.29 m8×1.25 7.9727.7607.1607.0426.619 7.107.14 m10×1.5 9.9689.7328.9948.8628.344 8.928.96 m12×

小徑大徑 最大最小公差最大最小公差最大最小最大最小公差最大最小公差 m3×0.52.982.8740.1062.6552.580.0752.43932.7752.6750.1002.5992.4590.140 m4×0.73.9783.8380.1403.5233.4330.0903.2243.6633.5450.1183.4223.2420.180 m5×0.84.9764.8260.1504.4564.3610.0954.1154.6054.480.1254.3344.1340.200 m6×15.9745.7940.1805.3245.2120.1124.89165.55.350.1505.1534.9170.236 m8×1.257.972

公制螺紋/英制螺紋規(guī)格一覽表 外螺紋大徑（單位mm）－－－－－－－內(nèi)螺紋小徑（單位mm）－－－－－－－ 序號(hào)規(guī)格型號(hào)最大最小公差最大最小公差 1m10*19.9749.7940.1809.1578.9170.240 2m12*1.511.96811.7320.23610.67610.3760.300 3m14*1.513.96813.7320.23612.67612.3760.300 4m16*1.515.96815.7320.23614.67614.3760.300 5m18*1.517.96817.7320.23616.67616.3760.300 6m20*1.519.96819.7320.23618.67618.3760.300 7m22*1.521.96821.73

公制外螺紋(6g)常用規(guī)格極限尺寸表(細(xì) 牙) 公稱直徑×螺距 螺紋精 度等級(jí) 大徑中徑小徑螺胚直徑 最大最小最大最小最大最小最大 m3x0.35 6g 2.9812.8962.7542.6872.602 2.712.73 m4x0.5 3.9803.8743.6553.5803.439 3.603.63 m5×0.5 4.9804.8744.6554.5804.439 4.604.63 m6×0.75 5.9785.8385.4915.3915.166 5.425.46 m8×0.75 7.9787.8387.4917.3917.166 7.427.46 m8×1 7.9747.7947.3247.2126.891 7.267.29 m10×0.75 9.9789.838

螺紋底孔徑 公制粗牙螺紋jisb0209-1982(單位：mm) 螺紋尺寸鉆頭直徑 崁合度區(qū)分：中 (注1)2級(jí)(注2) 下孔徑 崁合度區(qū)分：中 (注1)2級(jí)(注2) 內(nèi)螺紋小徑 最小直徑最大直徑 m1×0.250.750.78(80%)0.7290.785 1.1×0.250.850.88(80%)0.8290.885 1.2×0.250.950.98(80%)0.9290.985 1.4×0.31.11.14(80%)1.0751.142 1.6×0.351.251.32(75%)1.2211.321 1.8×0.351.451.52(75%)1.4211.521 2×0.41.61.65(80%)1.5671.679 2.2×0.4

螺紋尺寸螺紋尺寸 （英寸）大徑中徑小徑（英寸）psigmpapsigmpa 5/16247.9387.2496.7925/1624456831.5456831.5 7/162011.11310.2879.7387/1620456831.5456831.5 1/22012.711.87511.3251/220456831.5362625 9/161814.28813.32512.5599/1618456831.5362625 3/41619.0518.01917.3313/416456831.5362625 1-1/161226.98825.61324.6951-1/1612362625290020 1-5/161233.33831.96331.0