公制美制英制螺紋對照表格

1、公制美制英制螺紋比較表格公制美制英制螺紋比較表格11/11公制美制英制螺紋比較表格美制細牙UNF2A外螺紋大徑UNFUN2B內(nèi)螺紋小徑（UN、UNF）序號規(guī)格型號最大最小公差最小最大公差17/16-2011.07910.8740.2069.72810.0330.30521/2-2012.66712.4610.20611.32811.6080.27939/16-1814.25214.0310.22112.75113.0810.3343/4-1619.01218.7730.23917.32317.6780.35657/8-1422.18421.9230.26220.26920.6760.40661

2、(1/16)-1226.94426.6550.2924.68925.1460.45771(5/16)-1233.29433.0050.2931.03931.4960.45781(5/8)-1241.22940.940.2938.98939.4460.45791(7/8)-1247.57947.290.2945.33945.7960.457102(1/2)-1263.45263.1620.2961.21461.6710.457公制細牙6g外螺紋大徑6H內(nèi)螺紋小徑序號規(guī)格型號最大最小公差最小最大公差1M10*19.9749.7940.188.9179.1570.242M12*1.511.96811

3、.7320.23610.37610.6760.33M14*1.513.96813.7320.23612.37612.6760.34M16*1.515.96815.7320.23614.37614.6760.35M18*1.517.96817.7320.23616.37616.6760.36M20*1.519.96819.7320.23618.37618.6760.37M22*1.521.96821.7320.23620.37620.6760.38M24*1.523.96823.7320.23622.37622.6760.39M26*1.525.96825.7320.23624.37624.67

4、60.310M27*1.526.96826.7320.23625.37625.6760.311M30*1.529.96829.7320.23628.37628.6760.312M27*226.96226.6820.2824.83525.210.37513M30*229.96229.6820.2827.83528.210.37514M33*232.96232.6820.2830.83531.210.37515M36*235.96235.6820.2833.83534.210.37516M42*241.96241.6820.2839.83540.210.375英制管螺紋序號規(guī)格型號最大最小公差最小

5、最大公差1G1/8-289.7289.5140.2148.5668.8480.2822G1/4-1913.15712.9070.2511.44511.890.4453G3/8-1916.66216.4120.2514.9515.3950.4454G1/2-1420.95520.6710.28418.63119.1720.5415G3/4-1426.44126.1570.28424.11724.6580.5416G1-1133.24932.8890.3630.29130.9310.647G11/4-1141.9141.550.3638.95239.5920.648G11/2-1147.80347

6、.4430.3644.84545.4850.64公制/美制/英制螺紋比較表美制外螺紋（2A）常用規(guī)格極限尺寸表（粗牙）公稱尺寸螺紋系列代號大徑極限中徑極限小徑max螺胚直徑和最小最大最小最大最小8-320.15710.16310.13990.14280.1248(0.164-3.99034.14273.55353.62713.16993.5832)010-240.18180.1890.15860.16190.1379(0.190-4.61774.80064.02844.11233.50274.0724)012-240.20780.2150.18450.18790.16394.72(0.216-

7、5.27815.4614.68634.77274.16314.7224)01/4-200.24080.24890.21270.21640.1876(0.250-6.11636.32215.40265.49664.7655.4520)5/16-180.30260.31130.27120.27520.2431(0.3175-7.6867.9076.88856.99016.17476.9418)03/8-160.36430.37370.32870.33310.297(0.375-9.25329.4928.3498.46077.54388.416)7/16-140.42580.43610.3850.3

8、8970.3485(0.4375-UNC11.07699.7799.89848.85199.8314)10.815301/2-130.48760.49850.44350.44850.4041(0.50-12.38512.661911.264911.391910.264111.3413)9/16-120.54950.56090.50160.50680.4587(0.5625-13.957314.246912.740612.872711.65112.812)05/8-110.61130.62340.55890.56440.5119(0.625-15.52715.834414.196114.3358

9、13.002314.2711)03/4-100.73530.74820.67730.68320.625517.28(0.750-18.676619.004317.203417.353315.887710)07/8-90.85920.87310.79460.80090.7368(0.875-21.823722.176720.182820.342918.714720.279)1-80.9830.9980.910.91680.844623.22(1.000-24.968225.349223.11423.286721.45288)美制外螺紋（2A）常用規(guī)格極限尺寸表（細牙）公稱尺寸大徑極限中徑極限小徑

10、max螺胚直徑和螺紋系列代號最大最小最大最小最小8-360.15770.16320.14240.14520.12913.65(0.164-4.00564.14533.6173.68813.279136)10-320.18310.18910.16580.16880.15084.24(0.190-4.65074.80314.21134.28753.830332)012-280.20850.2150.18860.19180.17124.82(0.216-5.29595.4614.79044.87174.348528)01/4-280.24250.2490.22250.22580.20525.69(0

11、.250-6.15956.32465.65155.73535.212128)5/16-240.30420.31140.28060.28430.26037.17(0.3175-7.72677.90967.12727.22126.611624)03/8-240.36670.37390.3430.34680.32288.75(0.375-9.31429.49718.71228.80878.199124)7/16-200.42810.43620.39950.40370.3749(0.4375-UNF11.079510.147310.25410.1920)10.87379.522501/2-200.49

12、060.49870.46190.46620.4374(0.50-12.461212.66711.732311.841511.7820)11.119/16-180.55240.56110.52050.5250.4929(0.5625-14.03114.251913.220713.33513.2718)12.519705/8-180.61490.62360.58280.58750.5554(0.625-15.618515.839414.803114.922514.8518)14.107203/4-160.73910.74850.70290.70790.6718(0.750-18.773119.01

13、1917.853717.980717.9116)17.063707/8-140.86310.87340.82160.8270.7858(0.875-21.922722.184420.868621.005820.9314)19.95931-120.98680.99820.93820.94410.896(1.000-25.064725.354323.830323.980123.912)22.7584美制UNF螺紋常用規(guī)格序號標志牙數(shù)外徑內(nèi)徑刀具尺寸備注13/4-16UNF-2B1619.0517.3317.500.0527/8-14UNF-2B1422.22520.2620.460.0537/16

14、-20UNF-2B2011.11259.7389.880.0549/16-18UNF-2B1814.287512.7612.90.0555/8-18UNF-2B1815.87514.3514.50.05美制UN螺紋常用規(guī)格序號公稱直徑牙數(shù)外徑內(nèi)徑刀具尺寸備注11-1/16-12UN-2B1226.987524.724.90.0521-5/16-12UN-2B1233.337531.0531.30.0531-5/8-12UN-2B1241.27538.9839.20.0541-3/16-12UN2B1230.162527.8728.10.05英制管螺紋常用規(guī)格序號公稱直徑牙數(shù)外徑內(nèi)徑刀具尺寸備注

15、1G1/8289.7288.5668.6960.052G1/41913.15711.44511.660.053G3/81916.66214.9515.170.054G1/21420.95518.63118.90.055G3/41426.44124.11724.380.056G7/81430.20127.87728.140.05711133.24930.29130.610.058G1-1/41141.9138.95239.30.05公制螺紋常用規(guī)格序號公稱直徑螺距外徑內(nèi)徑刀具尺寸備注116*1.51.51614.37614.50.05218*1.51.51816.37616.50.05322*1

16、.51.52220.37620.50.05427*222724.835250.05533*22333O.835310.05642*224239.835400.05A型美制螺紋（UNF）常用規(guī)外螺紋內(nèi)螺紋-49/16-19牙14.2813.08-611/16-1617.4616.1-813/16-1620.6419.28-101-1425.423.57-121(3/16)-123028.32-161(7/16)-1236.5134.67-201(11/16)-1242.8641.02C型JIC37度美制UNF螺紋常外螺紋內(nèi)螺紋-47/16”-2011.1110.03-51/2”-2012.711

17、.32-69/16”-1814.2813.08-83/4”-161917.68-107/8”-1422.2220.68-121(1/16)-1226.9825.15-161(5/16)-1233.3331.5-201(5/8)-1241.2839.44-241(7/8)-1247.6245.8-322(1/2)-1263.561.67英制圓柱管螺紋（BSPP）常外螺紋內(nèi)螺紋-41/4”-1913.15711.55-63/8”-1916.66214.95-81/2”-1420.95518.63-123/4”-1426.44124.11-161”-1133.24930.29-201(1/4)-1141.9138.95英制圓錐管螺紋基面大徑基準距離（BSPT）常用規(guī)格1/4”-1913.15763/8”-1916.6626.41/2”-1420.9558.23/4”-1426.4419.51”-1133.24910.41(1/4)